Air conditioner, control method and device therefor, and storage medium

Abstract

The application relates to an air conditioner, a control method and device thereof and a storage medium, and belongs to the technical field of air conditioners, wherein the air conditioner comprises at least two control valves connected in parallel, the method comprises the following steps: monitoring an operating parameter of the air conditioner; acquiring a reset number and an initial opening degree of each of the at least two control valves in the case that the operating parameter meets a reset condition; determining a first control valve and a second control valve based on the reset number; determining a target opening degree and a remaining opening degree based on the initial opening degree, wherein the target opening degree comprises a maximum opening degree or a minimum opening degree; adjusting the first control valve to the target opening degree, and adjusting the second control valve to the remaining opening degree. The problem that the reset time is long and the service life of the valve body is affected in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioner, a control method and device thereof, and a storage medium. BACKGROUND

[0002] As a control element, an electronic expansion valve has become an important link of intelligentization of a refrigeration system. In actual operation of an air conditioner, the rotor of the electronic expansion valve is often lagged or advanced due to inertia, resulting in a phenomenon of out-of-step. After the out-of-step occurs in the system, it is not easy to be immediately discovered because the control system adjusts the opening degree of the electronic expansion valve according to the superheat degree of the system. Even if the out-of-step occurs, if the superheat degree does not reach the requirement, the electronic expansion valve will continue to be adjusted, but with the accumulation of the out-of-step, the system control may collapse.

[0003] Generally, the electronic expansion valve is reset in the following manner: in the case that the air conditioner is powered on or shut down, the electronic expansion valve is first opened by 50% and then closed by 120%. However, this manner needs to restart the air conditioner, resulting in a long reset time and affecting the service life of the valve body. SUMMARY

[0004] The present application provides an air conditioner, a control method and device thereof, and a storage medium, to solve the problem of a long reset time and affecting the service life of the valve body in the prior art.

[0005] In a first aspect, an embodiment of the present application provides a control method of an air conditioner, the air conditioner comprising at least two control valves connected in parallel, and the method comprising:

[0006] monitoring an operating parameter of the air conditioner;

[0007] in a case where the operating parameter meets a reset condition, obtaining a reset number and an initial opening degree of each of the at least two control valves;

[0008] determining a first control valve and a second control valve based on the reset number;

[0009] determining a target opening degree and a remaining opening degree based on the initial opening degree, the target opening degree comprising a maximum opening degree or a minimum opening degree;

[0010] adjusting the first control valve to the target opening degree and adjusting the second control valve to the remaining opening degree.

[0011] Optionally, the determining the first control valve and the second control valve based on the reset number comprises:

[0012] determining that the control valve with the minimum reset times is the first control valve, or in the case that the number of control valves with the minimum reset times is more than two, determining a preset control valve as the first control valve;

[0013] determining a control valve other than the first control valve as the second control valve.

[0014] Optionally, the determining the target opening degree and the remaining opening degree based on the initial opening degree comprises:

[0015] determining a total opening degree of the at least two control valves based on the initial opening degree;

[0016] in the case that the total opening degree is greater than a preset opening degree, determining that the target opening degree is a maximum opening degree, and the remaining opening degree is a difference between the total opening degree and the target opening degree;

[0017] in the case that the total opening degree is less than or equal to the preset opening degree, determining that the target opening degree is a minimum opening degree, and the remaining opening degree is the total opening degree.

[0018] Optionally, the running parameter comprises a running duration, and the reset condition comprises that the running duration reaches a first preset duration.

[0019] Optionally, after the adjusting the first control valve to the target opening degree and the adjusting the second control valve to the remaining opening degree, the method further comprises:

[0020] adding one to the reset times of the first control valve.

[0021] Optionally, the running parameter comprises a running duration, and after the adjusting the first control valve to the target opening degree and the adjusting the second control valve to the remaining opening degree, the method further comprises:

[0022] clearing the running duration.

[0023] Optionally, after the adjusting the first control valve to the target opening degree and the adjusting the second control valve to the remaining opening degree, the method further comprises:

[0024] after a second preset duration, adjusting the at least two control valves to the respective initial opening degrees.

[0025] In a second aspect, an embodiment of the present application provides a control device of an air conditioner, comprising:

[0026] a monitoring module configured to monitor a running parameter of the air conditioner;

[0027] an obtaining module configured to obtain reset times and initial opening degrees of at least two control valves in the case that the running parameter meets a reset condition.

[0028] a first determining module, configured to determine a first control valve and a second control valve based on the reset times;

[0029] a second determining module, configured to determine a target opening degree and a remaining opening degree based on the initial opening degrees, the target opening degree including a maximum opening degree or a minimum opening degree;

[0030] an adjusting module, configured to adjust the first control valve to the target opening degree and adjust the second control valve to the remaining opening degree.

[0031] In a third aspect, an air conditioner is provided, including: an air conditioner body, two control valves connected in parallel, and a processor;

[0032] The processor is configured to execute the control method of the air conditioner according to the first aspect.

[0033] In a fourth aspect, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by a processor to implement the control method of the air conditioner according to the first aspect.

[0034] The above technical solution provided by the embodiments of the present application has the following advantages compared with the prior art: the method provided by the embodiments of the present application, by monitoring the operating parameters of the air conditioner; in the case that the operating parameters meet the reset conditions, obtaining the reset times and initial opening degrees of the at least two control valves; determining a first control valve and a second control valve based on the reset times; determining a target opening degree and a remaining opening degree based on the initial opening degrees, the target opening degree including a maximum opening degree or a minimum opening degree; adjusting the first control valve to the target opening degree, and adjusting the second control valve to the remaining opening degree. In this way, in the process of resetting the control valve, the air conditioner does not need to be powered off or shut down, by setting multiple control valves, and based on the reset times of each control valve, determining the first control valve that needs to be reset, by adjusting the first control valve to the maximum opening degree or the minimum opening degree, the reset of the first control valve is realized, and the second control valve is adjusted to the remaining opening degree, which guarantees the normal operation of the air conditioner, and this reset process does not need to be powered off or shut down, the reset time is short, and the service life of the control valve is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0037] Figure 1 This is an application scenario diagram of an air conditioning control method provided in an embodiment of this application;

[0038] Figure 2 A flowchart illustrating an embodiment of the air conditioning control method provided in this application;

[0039] Figure 3 A flowchart of an air conditioning control method provided in another embodiment of this application;

[0040] Figure 4 A flowchart illustrating an air conditioning control method provided in yet another embodiment of this application;

[0041] Figure 5 A flowchart illustrating an air conditioning control method provided in another embodiment of this application;

[0042] Figure 6 This is a structural diagram of an air conditioner control device provided in an embodiment of this application. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] An embodiment of this application provides a method for controlling an air conditioner. Optionally, in this embodiment, the above-described air conditioner control method can be applied to, for example... Figure 1 The hardware environment shown consists of terminal 101 and server 102. For example... Figure 1 As shown, server 102 is connected to terminal 101 via a network and can be used to provide services (such as video services, application services, etc.) to the terminal or clients installed on the terminal. A database can be set up on the server or independently of the server to provide data storage services for server 102. The network mentioned above includes, but is not limited to, wide area network, metropolitan area network or local area network. Terminal 101 is not limited to PC, mobile phone, tablet computer, etc.

[0045] The control method of the air conditioner according to the embodiments of the present application can be executed by the server 102, or by the terminal 101, or by both the server 102 and the terminal 101. The terminal 101 executes the control method of the air conditioner according to the embodiments of the present application, or a client installed on the terminal 101 executes the control method of the air conditioner according to the embodiments of the present application.

[0046] Taking the terminal as an example, the control method of the air conditioner according to the embodiments of the present application is described below. Figure 2 FIG. 1 is a flowchart of an optional control method of an air conditioner according to the embodiments of the present application, as shown in FIG. 1, the flow of the method can include the following steps: Figure 2

[0047] Step 201: Monitor an operating parameter of the air conditioner.

[0048] In some embodiments, the operating parameter of the air conditioner can include, but is not limited to, a running time length of the air conditioner. The running time length can be counted from the start of the air conditioner or from the completion of the last reset of the control valve.

[0049] Step 202: Obtain the reset times and initial opening degrees of the at least two control valves, respectively, when the operating parameter meets a reset condition.

[0050] In some embodiments, the control valve can include, but is not limited to, an electronic expansion valve or a damper.

[0051] The reset times of the control valves can be stored in a database of the air conditioner. When the operating parameter meets the reset condition, the reset times of each control valve can be obtained from the database. The initial opening degrees can be obtained by a relevant collector when the operating parameter meets the reset condition.

[0052] Further, after obtaining the initial opening degrees, the air conditioner can also store the initial opening degrees of the control valves in the database.

[0053] In an optional embodiment, the operating parameter can include, but is not limited to, a running time length, and the reset condition can include that the running time length reaches a first preset time length.

[0054] The first preset time length can be set based on actual conditions, for example, set to any time length in 1 to 3 hours.

[0055] Step 203: Determine the first control valve and the second control valve based on the reset times.

[0056] In some embodiments, the control valves can be reset in turn based on the reset times, so that the control valves can operate normally.

[0057] ​In one embodiment, the first control valve and the second control valve are determined based on the number of resets, comprising:

[0058] The control valve with the minimum number of resets among the at least two control valves is determined as the first control valve; or in the case where the number of control valves with the minimum number of resets is more than two, a control valve preset is determined as the first control valve.

[0059] The control valve other than the first control valve is determined as the second control valve.

[0060] In some embodiments, by comparing the number of resets of each control valve, if the number of resets of a control valve is the minimum, it indicates that the control valve may not have been reset for a long time, and its possibility of losing step is the highest. Therefore, the control valve with the minimum number of resets is determined as the first control valve, and the other control valves are determined as the second control valve.

[0061] Since the resets of the control valves are performed in turn, the number of resets of each control valve may be the same. Based on this, the priority of each control valve can be set, and the control valve with the highest priority is determined as the first control valve. A control valve can also be preset as the first control valve.

[0062] Step 204, determining a target opening degree and a remaining opening degree based on the initial opening degree, the target opening degree comprising a maximum opening degree or a minimum opening degree.

[0063] In some embodiments, since the control valve can be considered to be reset whether it is at the minimum opening degree or the maximum opening degree, by setting the opening degree of the control valve to the maximum opening degree or the minimum opening degree, the reset of the control valve can be achieved.

[0064] In an optional embodiment, determining a target opening degree and a remaining opening degree based on the initial opening degree, comprising:

[0065] Determining a total opening degree of the at least two control valves based on the initial opening degree;

[0066] In the case where the total opening degree is greater than a preset opening degree, determining the target opening degree as the maximum opening degree, and the remaining opening degree as the difference between the total opening degree and the target opening degree;

[0067] In the case where the total opening degree is less than or equal to the preset opening degree, determining the target opening degree as the minimum opening degree, and the remaining opening degree as the total opening degree.

[0068] In some embodiments, the total opening degree is the sum of the initial opening degrees of the at least two control valves. The preset opening degree can be set based on actual conditions, for example, it can be set to 50%.

[0069] In the case that the total opening degree is less than the preset opening degree, the first control valve is reset to full close; and in the case that the total opening degree is not greater than the preset opening degree, the first control valve is reset to full open.

[0070] For example, in the case that the number of control valves is two and the opening degree of each control valve is 60%, when the control valves are reset, one of the control valves is adjusted to 100% and the other control valve is adjusted to 20%. For example, in the case that the number of control valves is two and the opening degree of each control valve is 20%, when the control valves are reset, one of the control valves is adjusted to 0% and the other control valve is adjusted to 40%.

[0071] For example, in the case that the number of control valves is two and the opening degree of each control valve is 60%, when the control valves are reset, one of the control valves is adjusted to 100% and the other control valve is adjusted to 20%. For example, in the case that the number of control valves is two and the opening degree of each control valve is 20%, when the control valves are reset, one of the control valves is adjusted to 0% and the other control valve is adjusted to 40%.

[0072] For example, in the case that the number of control valves is two and the opening degree of each control valve is 60%, when the control valves are reset, one of the control valves is adjusted to 100% and the other control valve is adjusted to 20%. For example, in the case that the number of control valves is two and the opening degree of each control valve is 20%, when the control valves are reset, one of the control valves is adjusted to 0% and the other control valve is adjusted to 40%.

[0073] Step 205: adjusting the first control valve to the target opening degree and adjusting the second control valve to the remaining opening degree.

[0074] In some embodiments, after the opening degrees of the first control valve and the second control valve are determined, the first control valve is adjusted to the target opening degree and the second control valve is adjusted to the remaining opening degree, so that the reset of the control valves is realized without affecting the operation of the air conditioner.

[0075] In an optional embodiment, after the first control valve is adjusted to the target opening degree and the second control valve is adjusted to the remaining opening degree, the method further comprises:

[0076] The reset number of the first control valve is increased by one.

[0077] After the reset of the first control valve is completed, the reset number of the first control valve is increased by one, so that the reset of the control valves can be realized without affecting the operation of the air conditioner.

[0078] In an optional embodiment, the operation parameter comprises an operation duration, and after the first control valve is adjusted to the target opening degree and the second control valve is adjusted to the remaining opening degree, the method further comprises:

[0079] The operation duration is cleared.

[0080] In some embodiments, the runtime is cleared after the reset of the control valve, so as to provide a reference for the runtime of the next reset of the control valve.

[0081] In an optional embodiment, after the first control valve is adjusted to the target opening degree and the second control valve is adjusted to the remaining opening degree, the method further comprises:

[0082] After the second preset time, the at least two control valves are adjusted to the respective initial opening degrees.

[0083] In some embodiments, after the second preset time, the control valves are adjusted to the original positions, so that the air conditioner can operate according to the operation before the reset, and the operation effect of the air conditioner is improved.

[0084] For example, the control valves are two, and the opening degrees are both 60%. After the reset of the control valves, one of the control valves is adjusted to 100%, and the other control valve is adjusted to 20%. Returning to the original position means that both of the control valves are adjusted to 60%.

[0085] The second preset time can be set based on actual conditions, for example, 30 seconds.

[0086] In a specific embodiment, the control valves are electronic expansion valves. In this application, two relatively small electronic expansion valves are connected in parallel to replace a relatively large electronic expansion valve. The control method of the air conditioner adjusts the two electronic expansion valves by turns through the runtime of the compressor and the actual operation opening degree.

[0087] Referring to Figure 3 When the air conditioner is turned on, the electronic expansion valve 1 and the electronic expansion valve 2 are first opened to 50% and then closed to 120% to be reset by turns. Then, the electronic expansion valve 1 and the electronic expansion valve 2 are initialized and opened to the initial step. After the compressor operates for a period of time, the electronic expansion valve 1 and the electronic expansion valve 2 are adjusted according to the suction superheat degree, the discharge temperature and other conditions. The actions of the two electronic expansion valves are the same, that is, they are opened and closed at the same time and remain consistent. Whether the total opening degree of the electronic expansion valves is greater than 50% is judged. When the total opening degree is greater than 50%, one electronic expansion valve is fully opened, and the other electronic expansion valve is opened to the remaining opening degree. After 30 seconds, the original position is returned to perform normal superheat degree adjustment. When the total opening degree is less than 50%, one electronic expansion valve is fully closed, and the other electronic expansion valve is opened to the remaining opening degree. After 30 seconds, the original position is returned to perform normal adjustment. When the air conditioner is turned off, the electronic expansion valve 1 and the electronic expansion valve 2 are first opened to 50% and then closed to 120% to be reset by turns.

[0088] At the beginning, the reset times of the electronic expansion valve 1 and the electronic expansion valve 2 are initialized to 0. When it is judged that the running time of the electronic expansion valve is greater than T hours, it can be considered that the condition for reset can be met.

[0089] Specifically, as shown in Figure 4 , it is judged whether the total opening degree of the electronic expansion valve 1 and the electronic expansion valve 2 is greater than 50%. When it is judged that the total opening degree is greater than 50%, it is judged whether the reset time of the electronic expansion valve 1 is greater than the reset time of the electronic expansion valve 2. If it is greater, the electronic expansion valve 2 is fully opened for reset, the electronic expansion valve 1 is opened to the remaining opening degree, and the reset time of the electronic expansion valve 2 is accumulated once; otherwise, the electronic expansion valve 1 is fully opened for reset, the electronic expansion valve 2 is opened to the remaining opening degree, and the reset time of the electronic expansion valve 1 is accumulated once. After 30S, it returns to the original position to perform normal superheat adjustment.

[0090] As shown in Figure 5 , when it is judged that the total opening degree is less than 50%, it is then judged whether the reset time of the electronic expansion valve 1 is greater than the reset time of the electronic expansion valve 2. If it is greater, the electronic expansion valve 2 is fully closed for reset, the electronic expansion valve 1 is opened to the remaining opening degree, and the reset time of the electronic expansion valve 2 is accumulated once; otherwise, the electronic expansion valve 1 is fully closed for reset, the electronic expansion valve 2 is opened to the remaining opening degree, and the reset time of the electronic expansion valve 1 is accumulated once.

[0091] Finally, the running time is cleared, and when the running time reaches T hours next time, the reset judgment is performed. At the same time, the time T can also be set through the display panel.

[0092] When the air conditioner is turned off, the electronic expansion valve 1 and the electronic expansion valve 2 are first opened by 50% and then closed by 120%, and the reset is performed in turn.

[0093] The above-mentioned manner realizes the turn-by-turn reset of the two electronic expansion valves, and does not affect the adjustment of the entire air conditioner. At the same time, the cost is saved and the stability of the air conditioner is improved, the step-out rate of the electronic expansion valve is greatly reduced, and the stability of the air conditioner is improved.

[0094] Based on the same concept, the embodiments of the present application provide a control device of an air conditioner, and the specific implementation of the device can be referred to the description of the method embodiments, and the repeated parts will not be described here. As shown in Figure 6 , the device mainly includes:

[0095] The monitoring module 601 is configured to monitor the running parameter of the air conditioner.

[0096] The acquisition module 602 is configured to acquire the reset times and initial opening degrees of the at least two control valves in the case that the running parameter meets the reset condition.

[0097] The first determination module 603 is configured to determine the first control valve and the second control valve based on the reset times.

[0098] The second determining module 604 is configured to determine a target opening degree and a remaining opening degree based on the initial opening degree, and the target opening degree comprises a maximum opening degree or a minimum opening degree.

[0099] The adjusting module 605 is configured to adjust the first control valve to the target opening degree and adjust the second control valve to the remaining opening degree.

[0100] Based on the same concept, the embodiments of the present application further provide an air conditioner, an air conditioner body, two control valves connected in parallel, and a processor.

[0101] The processor is configured to execute the control method of the air conditioner described in the above embodiments.

[0102] The processor described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc., and can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0103] In another embodiment of the present application, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program. When the computer program runs on a computer, the computer program causes the computer to execute the control method of the air conditioner described in the above embodiments.

[0104] In the embodiments described above, all or some of the steps can be implemented by software, hardware or firmware, or any combination thereof. When implemented by software, all or some of the steps can be implemented in the form of one or more computer programs. The computer program can be stored in any computer readable medium, and loaded into the computer for execution. The computer readable medium includes: a computer storage medium and a computer communication medium. The computer storage medium includes: volatile memory and non-volatile memory. The computer storage medium includes: an electric medium, a magnetic medium, an optical medium, and a solid medium. The computer communication medium includes: computer communication networks and computer networks. The computer program can be loaded into many different computers and different computers can be connected, so that the computer program can be distributed to different computers to be executed.

[0105] It should be noted that the terms "first" and "second" and the like in this text are used only to distinguish one entity or action from another, and do not necessarily require or imply these entities or actions have any such actual relationship or order. Also, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0106] The above description is only a specific implementation of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner includes at least two control valves connected in parallel, and the method includes: Monitor the operating parameters of the air conditioner; If the operating parameters meet the reset conditions, obtain the reset count and initial opening degree of each of the at least two control valves; The first control valve and the second control valve are determined based on the number of resets. The target opening and the remaining opening are determined based on the initial opening, wherein the target opening includes the maximum opening or the minimum opening; Adjust the first control valve to the target opening degree, and adjust the second control valve to the remaining opening degree; The step of determining the first control valve and the second control valve based on the number of resets includes: determining the control valve with the fewest resets among the at least two control valves as the first control valve; or, if there are two or more control valves with the fewest resets, determining a pre-set control valve as the first control valve; and determining a control valve other than the first control valve as the second control valve. The step of determining the target opening and the remaining opening based on the initial opening includes: determining the total opening of the at least two control valves based on the initial opening; if the total opening is greater than a preset opening, determining the target opening as the maximum opening, and the remaining opening as the difference between the total opening and the target opening; if the total opening is less than or equal to the preset opening, determining the target opening as the minimum opening, and the remaining opening as the total opening.

2. The air conditioning control method according to claim 1, characterized in that, The operating parameters include the running time, and the reset conditions include: the running time reaches a first preset duration.

3. The air conditioning control method according to claim 1, characterized in that, After adjusting the first control valve to the target opening degree and the second control valve to the remaining opening degree, the method further includes: Increment the number of resets for the first control valve by one.

4. The air conditioning control method according to claim 1, characterized in that, The operating parameters include operating time, adjusting the first control valve to the target opening, and adjusting the second control valve to the remaining opening, and further include: Reset the runtime to zero.

5. The air conditioning control method according to claim 1, characterized in that, After adjusting the first control valve to the target opening degree and the second control valve to the remaining opening degree, the method further includes: After a second preset time period, the at least two control valves are adjusted to their respective initial opening degrees.

6. An air conditioner control device for implementing the air conditioner control method as described in any one of claims 1 to 5, characterized in that, include: A monitoring module is used to monitor the operating parameters of the air conditioner; The acquisition module is used to acquire the reset count and initial opening degree of at least two control valves when the operating parameters meet the reset conditions. The first determining module is used to determine the first control valve and the second control valve based on the number of resets; The second determining module is used to determine the target opening and the remaining opening based on the initial opening, wherein the target opening includes the maximum opening or the minimum opening; An adjustment module is used to adjust the first control valve to the target opening degree and to adjust the second control valve to the remaining opening degree.

7. An air conditioner, characterized in that, include: The air conditioner unit, two control valves and a processor connected in parallel; The processor is used to execute the air conditioner control method according to any one of claims 1-5.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the air conditioning control method according to any one of claims 1-5.

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