Air conditioner control method and device, air conditioner and computer readable storage medium

Abstract

The application provides an air conditioner control method and device, an air conditioner and a computer readable storage medium. The method comprises the following steps: acquiring the running time and the corresponding running frequency of each compressor; if the running frequency of at least one initial target compressor in each compressor does not reach the oil return frequency within the corresponding running time, it is determined that the target air conditioner enters the oil return mode; if the oil return mode is entered, the running frequency of any one target compressor in the initial target compressor is controlled to the oil return frequency; if the running time of the target compressor at the oil return frequency reaches the target time, the working frequency of the remaining compressors is controlled to the oil return frequency in turn, and the running time of the remaining compressors at the oil return frequency is all the target time. The method makes the compressor enter the oil return mode, so that each compressor is controlled to return oil until all the compressors complete the oil return, and the service life of the compressor is ensured.

Description

Technical Field

[0001] This application relates to the field of electrical technology, specifically to an air conditioner control method, device, air conditioner, and computer-readable storage medium. Background Technology

[0002] An air conditioner with a multi-compressor system refers to a system equipped with at least two variable-frequency compressors, designed to improve overall performance and efficiency.

[0003] Compressors contain lubricating oil, which protects the compressor during operation. However, as the compressor works, some lubricating oil flows out through pipes. Therefore, maintaining a certain amount of lubricating oil inside the compressor is crucial for its lifespan. Traditional multi-compressor air conditioning systems do not operate the compressor at the optimal oil return frequency for extended periods. In other words, they cannot effectively guarantee oil return efficiency, which can shorten the compressor's lifespan to some extent. Summary of the Invention

[0004] This application provides an air conditioner control method that can effectively control the compressor oil return.

[0005] In a first aspect, this application provides an air conditioner control method applied to a target air conditioner, the target air conditioner including multiple compressors, the method comprising:

[0006] Obtain the operating time and operating frequency of each compressor;

[0007] If the operating frequency of any one of the target compressors does not reach the oil return frequency within the corresponding operating time, the target air conditioner is determined to enter the oil return mode.

[0008] If the oil return mode is entered, the operating frequency of any one of the initial target compressors is controlled to the oil return frequency;

[0009] If the target compressor's operating time at the oil return frequency reaches the target time, the operating frequencies of the remaining compressors other than the target compressor are controlled to take turns reaching the oil return frequency, and the operating time of the remaining compressors at the oil return frequency is the target time.

[0010] In some embodiments of this application, controlling the operating frequency of any one of the initial target compressors to the oil return frequency includes:

[0011] Determine the current total operating frequency of each compressor;

[0012] If the current total operating frequency is greater than the oil return frequency, the operating frequency of the target compressor is controlled to the oil return frequency; the sum of the remaining total operating frequency of the remaining compressors and the oil return frequency is the same as the current total operating frequency.

[0013] In some embodiments of this application, determining the current total operating frequency of each of the compressors includes:

[0014] The current total operating frequency of each compressor is determined based on the target temperature difference between the set temperature and the ambient temperature.

[0015] In some embodiments of this application, after determining the current total operating frequency of each compressor based on the target temperature difference between the set temperature and the ambient temperature, the method further includes:

[0016] Determine the upper limit of the frequency for each compressor in each of the aforementioned compressors;

[0017] If the current total operating frequency is greater than the return oil frequency, and the current total operating frequency is greater than the sum of the return oil frequency and the upper limit of the frequency, the return oil frequency is adjusted to the first actual return oil frequency, and the first actual return oil frequency is the same as the target frequency difference between the current total operating frequency and the upper limit of the frequency.

[0018] Control the operating frequency of the target compressor to the first actual oil return frequency;

[0019] If the target compressor's operating time at the first actual oil return frequency reaches the target time, the operating frequency of the remaining compressors is controlled to alternately reach the first actual oil return frequency, and the operating time of the remaining compressors at the first actual oil return frequency is the target time.

[0020] In some embodiments of this application, after determining the current total operating frequency of each compressor based on the target temperature difference between the set temperature and the ambient temperature, the method further includes:

[0021] If the oil return frequency is greater than the current total operating frequency, the oil return frequency is adjusted to the second actual oil return frequency, which is the same as the current total operating frequency.

[0022] Control the operating frequency of the target compressor to the second actual oil return frequency;

[0023] If the target compressor's operating time at the second actual oil return frequency reaches the target time, the operating frequency of the remaining compressors is controlled to alternately reach the second actual oil return frequency, and the operating time of the remaining compressors at the second actual oil return frequency is the target time.

[0024] In some embodiments of this application, the plurality of compressors includes two compressors;

[0025] The control of rotating the operating frequency of the remaining compressors other than the target compressor to the oil return frequency includes:

[0026] The frequency of the other compressor (not the target compressor) among the two compressors is controlled to the oil return frequency, and the operating time of the other compressor at the oil return frequency is the target time.

[0027] In some embodiments of this application, the method further includes:

[0028] If all the compressors have completed the oil return operation, exit the oil return mode;

[0029] If the oil return mode is exited, the target air conditioner will be controlled to operate according to the set instructions.

[0030] Secondly, this application also provides an air conditioner control device applied to a target air conditioner, the target air conditioner including a plurality of compressors, the device comprising:

[0031] The acquisition module is used to acquire the running time and running frequency of each compressor.

[0032] The determination module is used to determine that the target air conditioner enters the oil return mode if the operating frequency of any target compressor among the compressors has not reached the oil return frequency within the corresponding operating time.

[0033] The control module is used to control the operating frequency of any one of the initial target compressors to the oil return frequency if the oil return mode is entered.

[0034] The control module is further configured to, if the operating time of the target compressor at the oil return frequency reaches the target time, control the operating frequency of the remaining compressors other than the target compressor to take turns reaching the oil return frequency, wherein the operating time of the remaining compressors at the oil return frequency is the target time.

[0035] Thirdly, this application also provides an air conditioner, the air conditioner including a processor, a memory, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the steps in any of the air conditioner control methods described above.

[0036] Fourthly, this application also provides a computer-readable storage medium storing a computer program that is executed by a processor to implement the steps in any of the air conditioner control methods described above.

[0037] This application provides an air conditioner control method that can determine the target compressor that needs to enter the oil return mode based on the corresponding operating time and frequency of each compressor. If the target compressor enters the oil return mode, it can be controlled to return oil at the specified frequency. After the target compressor completes its oil return, the remaining compressors can be controlled to return oil in the same manner as the target compressor until all compressors have completed their oil return, thus ensuring the lifespan of the compressors. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of a scenario for the air conditioner control system provided in the embodiments of this application;

[0040] Figure 2 This is a schematic flowchart of one embodiment of the air conditioner control method in this application.

[0041] Figure 3 This is a schematic diagram of one embodiment of the air conditioner control device in this application.

[0042] Figure 4 This is a schematic diagram of the structure of an embodiment of the air conditioner in this application. Detailed Implementation

[0043] 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, and 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] In the description of this application, it should be understood that the terms "a" and "an" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "a" or "an" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0046] This application provides an air conditioner control method, apparatus, air conditioner, and storage medium, which are described below.

[0047] The following section first introduces some basic concepts involved in the embodiments of this application:

[0048] An air conditioner generally consists of several main parts, including a cold / heat source unit, a cold / heat medium distribution system, terminal units, and other auxiliary equipment. The main components include the refrigeration unit, water pump, fan, and piping system. The terminal units are responsible for utilizing the distributed cold or heat to specifically process the air, ensuring that the air parameters of the target environment meet certain requirements.

[0049] Please see Figure 1 , Figure 1 This is a schematic diagram illustrating a scenario of the air conditioner control method provided in this application embodiment. The air conditioner control system may include an air conditioner 100 and a main control device 200. The main control device 200 may be located within a server, thereby enabling tasks that the air conditioner 100 cannot handle due to limitations in its own data processing capabilities. For example, by deploying a neural network model on the server, the air conditioner 100 can acquire relevant data and send it to the neural network model on the server. Then, after analysis by the neural network model, the server can issue control commands to the air conditioner 100 based on the analysis results.

[0050] Based on this, the air conditioner 100 and the main control device 200 can communicate with each other in any way, including but not limited to signal communication via electronic circuits and wireless communication. Wireless communication can be computer network communication using the TCP / IP protocol suite (TCP / IP) or User Datagram Protocol (UDP). The air conditioner 100 can receive control signals from a remote control or control panel to perform a series of air conditioner functions such as cooling, heating, dehumidification, and dust removal. The air conditioner 100 can also receive instruction information sent by the main control device 200, and can perform corresponding cooling, heating, dehumidification, and dust removal operations according to the corresponding instruction information, such as the air conditioner control method in this application.

[0051] In this embodiment of the application, the air conditioner 100 includes, but is not limited to, wall-mounted air conditioners, floor-standing air conditioners, window air conditioners, ceiling-mounted air conditioners, and recessed air conditioners.

[0052] Those skilled in the art will understand that Figure 1 The application environment shown is merely one application scenario of the solution in this application and does not constitute a limitation on the application scenario of the solution in this application. Other application environments may include those that are more specific to this application. Figure 1 The number of more or fewer air conditioners and air conditioners shown, for example Figure 1 Only one air conditioner or air conditioner is shown in the figure. The air conditioner control system of this application may also include one or more air conditioners and air conditioners for performing the air conditioner control method of this application. The specific details are not limited here.

[0053] In addition, such as Figure 1 As shown, the main control device 200 may also include any hardware device capable of data processing and instruction sending, such as a CPU or microcontroller embedded inside the air conditioner; no specific limitation is made here.

[0054] It should be noted that, Figure 1 The schematic diagram of the air conditioner control system shown is merely an example. The air conditioner control system and scenario described in this application are intended to more clearly illustrate the technical solutions of this application and do not constitute a limitation on the technical solutions provided in this application. As those skilled in the art will know, with the evolution of air conditioner control systems and the emergence of new business scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0055] like Figure 2 As shown, Figure 2This is a schematic flowchart of an embodiment of the air conditioner control method in this application. The method is applied to a target air conditioner, which includes multiple compressors. The air conditioner control method may include the following steps 201-204:

[0056] 201. Obtain the running time and running frequency of each compressor.

[0057] In this embodiment, the target air conditioner with multiple compressors is typically a multi-split air conditioner. Therefore, the configuration scheme of multiple compressors in this embodiment can refer to multi-split air conditioners, and the specific embodiment is not limited thereto.

[0058] In multi-split air conditioning systems, multiple compressors operate according to a predetermined program to regulate air temperature, such as working individually or in conjunction. During normal compressor operation, lubricating oil gradually flows out of the compressor. Therefore, the normal operating status of each compressor can be monitored to determine its normal operating time and predict the amount of lubricating oil remaining. If the prediction indicates a low amount of lubricating oil, the oil return mode needs to be activated. In this embodiment, obtaining the operating time and frequency of each compressor is used to determine its normal operating time. The operating time of each compressor can be determined using a timer, and a monitor can also be set to track the compressor's operating frequency curve from the start of operation to obtain the compressor's operating frequency.

[0059] 202. If at least one of the initial target compressors does not reach the oil return frequency during the corresponding operating time, the target air conditioner is determined to enter the oil return mode.

[0060] After obtaining the operating frequency and operating time for each compressor according to the above steps, it can be determined whether each compressor reaches the time threshold within the operating time, and whether the compressor has operated at the oil return frequency during this period after reaching the time threshold. If the compressor has not operated at the oil return frequency within a certain period, it indicates that the corresponding compressor needs to perform an oil return operation.

[0061] It should be noted that the oil return frequency of a compressor refers to the operating frequency at which lubricating oil can flow back into the compressor. This oil return frequency varies depending on the compressor model, and the specific embodiments in this application do not limit the oil return frequency.

[0062] 203. If entering the oil return mode, control the operating frequency of any one of the initial target compressors to the oil return frequency.

[0063] Based on the above steps, if any one of the target compressors has not operated at the oil return frequency within a certain period of time, the operating frequency of the target compressor can be adjusted to the oil return frequency, so that the target compressor performs oil return.

[0064] 204. If the target compressor's operating time at the oil return frequency reaches the target time, control the operating frequency of the remaining compressors (excluding the target compressor) to reach the oil return frequency in turn, and the operating time of the remaining compressors at the oil return frequency will be the target time.

[0065] Based on the steps described above, the target compressor begins its oil return operation at the specified frequency. Therefore, during this oil return process, the target compressor cannot perform its current function in air temperature regulation. At this point, the remaining compressors must take over the workload of the target compressor, thus increasing their workload. Therefore, after the target compressor completes its oil return operation, the remaining compressors should complete their oil return operations sequentially, just like the target compressor. This alleviates the lubricating oil overflow caused by the additional workload on the remaining compressors due to the target compressor's oil return operation.

[0066] For example, suppose there are compressors 1, 2, and 3. If compressor 1 is the target compressor, after the target compressor completes its oil return operation, compressor 2 can be controlled to return oil in the same way as compressor 1. At this time, compressors 1 and 3 perform air temperature regulation. Then, after compressor 2 completes its oil return operation, compressor 3 can return oil in the same way as compressor 1. Meanwhile, compressors 1 and 2 perform air temperature regulation until all compressors complete their oil return operations. Finally, a cyclic oil return operation can also be set; specific embodiments of this application are not limited to this.

[0067] This application provides an air conditioner control method that can determine the target compressor that needs to enter the oil return mode based on the corresponding operating time and frequency of each compressor. If the target compressor enters the oil return mode, it can be controlled to return oil at the specified frequency. After the target compressor completes its oil return, the remaining compressors can be controlled to return oil in the same manner as the target compressor until all compressors have completed their oil return, thus ensuring the lifespan of the compressors.

[0068] To better implement the method of this application, in some embodiments of this application, the operating frequency of any one of the initial target compressors is controlled to the oil return frequency, including:

[0069] Determine the current total operating frequency of each compressor; if the current total operating frequency is greater than the oil return frequency, control the operating frequency of the target compressor to the oil return frequency; the sum of the remaining total operating frequency and the oil return frequency of the remaining compressors is the same as the current total operating frequency.

[0070] To ensure that the overall cooling or heating performance of the air conditioner is not affected when one compressor is performing oil return, embodiments of this application can further limit the overall operating frequency of each compressor. For example, when an oil return operation is required for a target compressor, the operating frequency of each compressor can be obtained first to determine the current total operating frequency of all compressors. Then, when the target compressor begins its oil return operation at the oil return frequency, the sum of the frequencies of the other compressors is controlled to be the difference between the current total operating frequency and the oil return frequency, i.e., the remaining total operating frequency. This ensures that the sum of the remaining total operating frequency and the oil return frequency equals the current total operating frequency. In other words, when the total frequency of all compressors remains constant, the cooling or heating performance will not deviate, thus guaranteeing that the cooling or heating performance is not affected when the compressor is performing oil return.

[0071] To better implement the method of this application, in some embodiments of this application, the current total operating frequency of each compressor is determined, including:

[0072] Based on the target temperature difference between the set temperature and the ambient temperature, the current total operating frequency of each compressor is determined.

[0073] The above embodiments provide a scheme for determining the current total operating frequency based on the obtained operating frequencies of each compressor. This application also provides a scheme for determining the current total operating frequency. For example, when compressor oil return is required, the user may adjust the set temperature. In order to meet the user's needs in real time, the current total operating frequency of each compressor can be determined based on the target temperature difference between the set temperature and the ambient temperature.

[0074] In the field of variable frequency air conditioning technology, the operating frequency of an air conditioner compressor changes with temperature. The closer the set temperature is to the ambient temperature, or even if the set temperature is lower than the ambient temperature, the lower the compressor's operating frequency. Therefore, the smaller the target temperature difference, the lower the compressor's operating frequency. Thus, the total operating frequency of each compressor corresponding to the target temperature difference can be determined based on the curve of the preset temperature difference and its corresponding frequency in the air conditioner. The total frequency can be adjusted using a PID (Proportional-Integral-Derivative Control) method; any PID control method can be referenced, and this application does not limit the specific implementation.

[0075] To better implement the method of this application, in some embodiments of this application, after determining the current total operating frequency of each compressor based on the target temperature difference between the set temperature and the ambient temperature, the method further includes:

[0076] Determine the upper frequency limit for each compressor in each compressor; if the current total operating frequency is greater than the oil return frequency, and the current total operating frequency is greater than the sum of the oil return frequency and the upper frequency limit, adjust the oil return frequency to the first actual oil return frequency, the first actual oil return frequency and the target frequency difference between the current total operating frequency and the upper frequency limit are the same; control the operating frequency of the target compressor to the first actual oil return frequency; if the operating time of the target compressor at the first actual oil return frequency reaches the target time, control the operating frequency of the remaining compressors other than the target compressor to reach the first actual oil return frequency in turn, the operating time of the remaining compressors at the first actual oil return frequency is the target time.

[0077] Because different compressor models have different oil return frequencies, and different users set different temperatures when using air conditioners, it is necessary to determine the upper limit of the frequency for each compressor and whether the current total operating frequency is greater than the sum of the oil return frequency and the upper limit of the frequency to meet actual conditions.

[0078] For example, suppose there are two compressors, with an oil return frequency of 70Hz, a frequency upper limit of 100Hz, and a total frequency of 180Hz. To ensure consistent cooling or heating performance, one compressor needs to operate at 70Hz during oil return, while the other needs to operate at 110Hz. However, due to model limitations, one compressor's frequency upper limit is 100Hz, making it impossible to reach 110Hz. Therefore, to ensure consistent cooling or heating performance, the oil return frequency needs to be adjusted to 180-100=80Hz. It should be noted that the initial oil return frequency can be the optimal frequency for the compressor. If the optimal frequency cannot be used, as in this example, the oil return frequency can be adjusted appropriately to a feasible frequency.

[0079] Afterwards, once the target compressor completes its oil return operation at 80Hz, the other compressor simply swaps frequencies with the target compressor to operate at 80Hz, while the target compressor's frequency is adjusted to 100Hz. Therefore, when there are two compressors, after one compressor completes its oil return operation, swapping the frequencies of the two compressors allows the other compressor to begin its oil return operation. This also ensures that the total frequency remains constant, thus maintaining consistent cooling or heating performance.

[0080] The upper frequency limit can be set in a storage medium within the air conditioner. When this upper frequency limit is needed, it can be retrieved from the storage medium. This upper frequency limit can be set by the operator for different compressor models.

[0081] To better implement the method of this application, in some embodiments of this application, after determining the current total operating frequency of each compressor based on the target temperature difference between the set temperature and the ambient temperature, the method further includes:

[0082] If the oil return frequency is greater than the current total operating frequency, adjust the oil return frequency to the second actual oil return frequency, which is the same as the current total operating frequency; control the operating frequency of the target compressor to the second actual oil return frequency; if the operating time of the target compressor at the second actual oil return frequency reaches the target time, control the operating frequency of the remaining compressors other than the target compressor to reach the second actual oil return frequency in turn, and the operating time of the remaining compressors at the second actual oil return frequency is the target time.

[0083] Similarly, when using an air conditioner, users may encounter a situation where the total operating frequency of all compressors is lower than the oil return frequency. In this case, the total operating frequency can be directly used as the oil return frequency. Therefore, when the target compressor is returning oil at the oil return frequency, the other compressors should not operate; that is, the operating frequency of the other compressors should be 0.

[0084] In summary, regardless of whether the oil return frequency is changed to the first or second actual oil return frequency, after the target compressor completes the oil return, the remaining compressors can all perform oil return operations at the changed oil return frequency.

[0085] To better implement the method of this application, in some embodiments of this application, the method further includes:

[0086] If all compressors have completed the oil return operation, exit the oil return mode; if exiting the oil return mode, control the target air conditioner to operate according to the set instructions.

[0087] As can be seen from any of the above embodiments, once each compressor has completed its oil return process, the target air conditioner can exit the oil return mode and enter the normal mode. Once the target air conditioner enters the normal mode, it can return to the initial solution and continue monitoring the operating time and frequency of each compressor to complete the overall cyclic control.

[0088] To better implement the air conditioner control method in this application embodiment, this application embodiment also provides an air conditioner control device, which is applied to a target air conditioner, the target air conditioner including multiple compressors, such as... Figure 3 As shown, the device 300 includes:

[0089] The acquisition module 301 is used to acquire the running time and running frequency of each compressor.

[0090] The determination module 302 is used to determine that the target air conditioner enters the oil return mode if the operating frequency of at least one initial target compressor among the compressors has not reached the oil return frequency within the corresponding operating time.

[0091] The control module 303 is used to control the operating frequency of any one of the target compressors in the initial target compressors to the oil return frequency if the oil return mode is entered.

[0092] The control module 303 is also used to control the operating frequency of the remaining compressors other than the target compressor to reach the oil return frequency in turn if the operating time of the target compressor at the oil return frequency reaches the target time, and the operating time of the remaining compressors at the oil return frequency is the target time.

[0093] This application provides an air conditioner control device. The acquisition module 301 acquires the operating time and frequency of each compressor. Then, the determination module 302 determines the target compressor that needs to enter the oil return mode based on the operating time and frequency of each compressor. If the target compressor enters the oil return mode, the control module 303 controls the target compressor to return oil at the specified frequency. After the target compressor completes its oil return, the remaining compressors can be controlled to return oil in the same manner as the target compressor until all compressors have completed their oil return, thus ensuring the compressor's lifespan.

[0094] In some embodiments of this application, the control module 303 is specifically used for:

[0095] Determine the current total operating frequency of each compressor;

[0096] If the current total operating frequency is greater than the oil return frequency, control the operating frequency of the target compressor to the oil return frequency; the sum of the remaining total operating frequency and the oil return frequency of the remaining compressors is the same as the current total operating frequency.

[0097] In some embodiments of this application, the determining module 302 is specifically used for:

[0098] Based on the target temperature difference between the set temperature and the ambient temperature, the current total operating frequency of each compressor is determined.

[0099] In some embodiments of this application, the control module 303 is further configured to:

[0100] Determine the upper frequency limit for each compressor in the compressor system;

[0101] If the current total operating frequency is greater than the return oil frequency, and the current total operating frequency is greater than the sum of the return oil frequency and the upper limit of the frequency, the return oil frequency is adjusted to the first actual return oil frequency. The first actual return oil frequency is the same as the target frequency difference between the current total operating frequency and the upper limit of the frequency.

[0102] Control the operating frequency of the target compressor to the first actual oil return frequency;

[0103] If the target compressor reaches the target time at the first actual oil return frequency, the operating frequency of the remaining compressors is controlled to reach the first actual oil return frequency in turn, and the operating time of the remaining compressors at the first actual oil return frequency is the target time.

[0104] In some embodiments of this application, the control module 303 is further configured to:

[0105] If the oil return frequency is greater than the current total operating frequency, the oil return frequency will be adjusted to the second actual oil return frequency, which is the same as the current total operating frequency.

[0106] Control the operating frequency of the target compressor to the second actual oil return frequency;

[0107] If the target compressor reaches the target time at the second actual oil return frequency, the operating frequency of the remaining compressors is controlled to reach the second actual oil return frequency in turn, and the operating time of the remaining compressors at the second actual oil return frequency is the target time.

[0108] In some embodiments of this application, the plurality of compressors includes two compressors, and the control module 303 is further specifically used for:

[0109] Control the frequency of the other compressor (which is not the target compressor) to the oil return frequency. The running time of the other compressor at the oil return frequency is the target time.

[0110] In some embodiments of this application, the control module 303 is further configured to:

[0111] Once all compressors have completed the oil return operation, exit the oil return mode.

[0112] If the oil return mode is exited, the target air conditioner will operate according to the set instructions.

[0113] This application also provides an air conditioner that integrates any of the air conditioner control methods provided in this application, such as... Figure 4 As shown, it illustrates a structural schematic diagram of the air conditioner involved in the embodiments of this application, specifically:

[0114] The air conditioner may include components such as a processor 401 with one or more processing cores, a storage device 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 4 The air conditioner structure shown does not constitute a limitation on the air conditioner and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0115] in:

[0116] The processor 401 is the control center of the air conditioner. It connects to various parts of the air conditioner via various interfaces and lines. By running or executing software programs and / or modules stored in the storage device 402, and by calling data stored in the storage device 402, it performs various functions and processes data, thereby providing overall monitoring of the air conditioner. Optionally, the processor 401 may include one or more processing cores. The processor 401 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. Preferably, the processor 401 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 401.

[0117] Storage device 402 can be used to store software programs and modules. Processor 401 executes various functional applications and data processing by running the software programs and modules stored in storage device 402. Storage device 402 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created based on the use of the air conditioner, etc. In addition, storage device 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, storage device 402 may also include a memory controller to provide processor 401 with access to storage device 402.

[0118] The air conditioner also includes a power supply 403 that supplies power to the various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 403 may also include one or more DC or AC power supplies, a recharging system, a power fault detection circuit, a power converter or inverter, a power status indicator, or any other components.

[0119] The air conditioner may also include an input unit 404, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0120] Although not shown, the air conditioner may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 401 in the air conditioner loads the executable files corresponding to the processes of one or more application programs into the storage device 402 according to the following instructions, and the processor 401 runs the application programs stored in the storage device 402 to realize various functions, such as:

[0121] Obtain the running time and running frequency of each compressor;

[0122] If at least one of the initial target compressors does not reach the oil return frequency within the corresponding operating time, the target air conditioner is determined to enter the oil return mode.

[0123] If the oil return mode is entered, the operating frequency of any one of the initial target compressors is controlled to the oil return frequency.

[0124] If the target compressor runs at the oil return frequency for a certain period of time, the operating frequency of the remaining compressors (excluding the target compressor) is controlled to reach the oil return frequency in turn, and the running time of the remaining compressors at the oil return frequency is the target time.

[0125] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0126] Therefore, embodiments of this application provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in any of the air conditioner control methods provided in embodiments of this application. For example, the computer program loaded by the processor can execute the following steps:

[0127] Obtain the running time and running frequency of each compressor;

[0128] If at least one of the initial target compressors does not reach the oil return frequency within the corresponding operating time, the target air conditioner is determined to enter the oil return mode.

[0129] If the oil return mode is entered, the operating frequency of any one of the initial target compressors is controlled to the oil return frequency.

[0130] If the target compressor runs at the oil return frequency for a certain period of time, the operating frequency of the remaining compressors (excluding the target compressor) is controlled to reach the oil return frequency in turn, and the running time of the remaining compressors at the oil return frequency is the target time.

[0131] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0132] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0133] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0134] The above provides a detailed description of an air conditioner control method and apparatus provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An air conditioner control method, characterized in that, Applied to a target air conditioner, the target air conditioner including multiple compressors, the method includes: Obtain the operating time and operating frequency of each compressor; If at least one of the initial target compressors does not reach the oil return frequency during the corresponding operating time, the target air conditioner is determined to enter the oil return mode. If the oil return mode is entered, the operating frequency of any one of the initial target compressors is controlled to the oil return frequency; If the target compressor's operating time at the oil return frequency reaches the target time, the operating frequency of the remaining compressors other than the target compressor is controlled to reach the oil return frequency in turn, and the operating time of the remaining compressors at the oil return frequency is the target time. Controlling the operating frequency of any one of the initial target compressors to the oil return frequency includes: Determine the current total operating frequency of all compressors; If the current total operating frequency is greater than the oil return frequency, control the operating frequency of the target compressor to the oil return frequency; the sum of the remaining total operating frequency of the remaining compressors and the oil return frequency is the same as the current total operating frequency. Determining the current total operating frequency of all compressors includes: Based on the target temperature difference between the set temperature and the ambient temperature, determine the current total operating frequency of all compressors; Determine the upper limit of the frequency for each compressor in each of the aforementioned compressors; If the current total operating frequency is greater than the return oil frequency, and the current total operating frequency is greater than the sum of the return oil frequency and the upper limit of the frequency, the return oil frequency is adjusted to the first actual return oil frequency, and the first actual return oil frequency is the same as the target frequency difference between the current total operating frequency and the upper limit of the frequency. Control the operating frequency of the target compressor to the first actual oil return frequency; If the target compressor's operating time at the first actual oil return frequency reaches the target time, the operating frequencies of the remaining compressors other than the target compressor are controlled to take turns reaching the first actual oil return frequency, and the operating time of the remaining compressors at the first actual oil return frequency is the target time.

2. The air conditioner control method according to claim 1, characterized in that, After determining the current total operating frequency of all compressors based on the target temperature difference between the set temperature and the ambient temperature, the method further includes: If the oil return frequency is greater than the current total operating frequency, the oil return frequency is adjusted to the second actual oil return frequency, which is the same as the current total operating frequency. Control the operating frequency of the target compressor to the second actual oil return frequency; If the target compressor's operating time at the second actual oil return frequency reaches the target time, the operating frequencies of the remaining compressors other than the target compressor are controlled to take turns reaching the second actual oil return frequency, and the operating time of the remaining compressors at the second actual oil return frequency is the target time.

3. The air conditioner control method according to claim 1, characterized in that, The plurality of compressors includes two compressors; The control of rotating the operating frequency of the remaining compressors other than the target compressor to the oil return frequency includes: The frequency of the other compressor (not the target compressor) among the two compressors is controlled to the oil return frequency, and the operating time of the other compressor at the oil return frequency is the target time.

4. The air conditioner control method according to claim 1, characterized in that, The method further includes: If all the compressors have completed the oil return operation, exit the oil return mode; If the oil return mode is exited, the target air conditioner will be controlled to operate according to the set instructions.

5. An air conditioner control device, characterized in that, Applied to a target air conditioner, the target air conditioner including multiple compressors, the device includes: The acquisition module is used to acquire the running time and running frequency of each compressor. The determination module is used to determine that the target air conditioner enters the oil return mode if the operating frequency of at least one initial target compressor among the compressors does not reach the oil return frequency within the corresponding operating time. The control module is used to control the operating frequency of any one of the initial target compressors to the oil return frequency if the oil return mode is entered. The control module is further configured to, if the operating time of the target compressor at the oil return frequency reaches the target time, control the operating frequency of the remaining compressors other than the target compressor to take turns reaching the oil return frequency, and the operating time of the remaining compressors at the oil return frequency is the target time. Controlling the operating frequency of any one of the initial target compressors to the oil return frequency includes: Determine the current total operating frequency of all compressors; If the current total operating frequency is greater than the oil return frequency, control the operating frequency of the target compressor to the oil return frequency; the sum of the remaining total operating frequency of the remaining compressors and the oil return frequency is the same as the current total operating frequency. Determining the current total operating frequency of all compressors includes: Based on the target temperature difference between the set temperature and the ambient temperature, determine the current total operating frequency of all compressors; Determine the upper limit of the frequency for each compressor in each of the aforementioned compressors; If the current total operating frequency is greater than the return oil frequency, and the current total operating frequency is greater than the sum of the return oil frequency and the upper limit of the frequency, the return oil frequency is adjusted to the first actual return oil frequency, and the first actual return oil frequency is the same as the target frequency difference between the current total operating frequency and the upper limit of the frequency. Control the operating frequency of the target compressor to the first actual oil return frequency; If the target compressor's operating time at the first actual oil return frequency reaches the target time, the operating frequencies of the remaining compressors other than the target compressor are controlled to take turns reaching the first actual oil return frequency, and the operating time of the remaining compressors at the first actual oil return frequency is the target time.

6. An air conditioner, characterized in that, The air conditioner includes a processor, a memory, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the steps of the air conditioner control method according to any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that is executed by a processor to implement the steps of the air conditioner control method according to any one of claims 1 to 4.

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