A control method and device of an air conditioner, the air conditioner, a storage medium and a product

Abstract

This application discloses a control method, device, air conditioner, storage medium, and product for an air conditioner. The outdoor controller of the air conditioner is connected to an electronic expansion valve, which can operate in different system flow paths. The method includes: in response to an instruction to activate a target operating mode, controlling the electronic expansion valve to be fully open and controlling the compressor of the air conditioner to start; acquiring a first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor starts, after the compressor operation timer is activated and reaches a first duration; and in response to the first parameter satisfying the change conditions corresponding to the target operating mode, controlling the electronic expansion valve to be fully open.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air conditioner control technology, and in particular to an air conditioner control method, device, air conditioner, storage medium, and product. Background Technology

[0002] To better address the heat dissipation issue of the power components in the inverter controller, inverter air conditioners utilize refrigerant loop cooling technology. For models with electronic expansion valves, both the electronic expansion valve and a throttling valve work together for system throttling control. Currently, two different flow path systems are used: one uses an electronic expansion valve for throttling in cooling mode and a one-way throttling valve for throttling in heating mode; the other uses an electronic expansion valve for throttling in heating mode and a one-way throttling valve for cooling mode.

[0003] It is evident that the control method for electronic expansion valves differs for different flow path systems. Using the wrong method will result in condensation on the refrigerant loop, damaging the control board. Therefore, related technologies cannot control different flow path systems using the same controller. Summary of the Invention

[0004] This application provides a control method, device, air conditioner, storage medium, and product for an air conditioner, which solves the problem in related technologies that different flow path systems cannot be controlled by the same controller. This application utilizes the same outdoor controller to match different system flow paths to achieve precise control of the solenoid valves in different system flow paths, thereby achieving reliable control of different system flow paths.

[0005] The technical solution of this application is implemented as follows:

[0006] A method for controlling an air conditioner, wherein the outdoor controller of the air conditioner is connected to an electronic expansion valve, the electronic expansion valve being capable of operating in different system flow paths, the method comprising:

[0007] In response to the command to activate the target operating mode, the electronic expansion valve is controlled to be fully open, and the compressor of the air conditioner is controlled to start.

[0008] Obtain the first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor is started, the compressor running time is turned on and a first time period is reached.

[0009] In response to the change conditions corresponding to the target operating mode, the electronic expansion valve is controlled to be in the fully open state.

[0010] A control device for an air conditioner, wherein the outdoor controller of the air conditioner is connected to an electronic expansion valve, the electronic expansion valve being capable of operating in different system flow paths, the control device comprising:

[0011] The first processing module is used to respond to the instruction to start the target operating mode, control the electronic expansion valve to be fully open, and control the compressor of the air conditioner to start.

[0012] Obtain the first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor is started, the compressor running time is turned on and a first time period is reached.

[0013] The second processing module is used to control the electronic expansion valve to be in a fully open state in response to the change conditions corresponding to the target operating mode of the first parameter.

[0014] An air conditioner includes: an outdoor controller and a memory; wherein the outdoor controller is connected to an electronic expansion valve of the air conditioner, and the electronic expansion valve is capable of operating in different system flow paths;

[0015] The outdoor controller and the memory are connected via a communication link;

[0016] The outdoor controller is used to execute the air conditioner control program stored in the memory to implement the steps in the above-described air conditioner control method.

[0017] A storage medium storing one or more programs, which can be executed by one or more outdoor controllers to implement the steps in the above-described air conditioner control method.

[0018] This application also provides a computer product, including a computer program, which, when executed by an outdoor controller, implements the steps of any of the above methods.

[0019] The air conditioner control method, device, air conditioner, storage medium, and product provided in this application embodiment include an outdoor controller connected to an electronic expansion valve, which can operate in different system flow paths. The method includes: responding to an instruction to activate a target operating mode, controlling the electronic expansion valve to be fully open and controlling the air conditioner compressor to start; acquiring a first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the indoor evaporator coil temperature after the compressor starts, starts the compressor operation timer, and reaches a first duration; and responding to the first parameter satisfying the change conditions corresponding to the target operating mode, controlling the electronic expansion valve to be fully open. This application uses the same outdoor controller with different system flow paths to achieve precise control of the solenoid valves in different system flow paths under the target operating mode, thereby achieving reliable control of different system flow paths. Attached Figure Description

[0020] Figure 1A flowchart illustrating the control method for an air conditioner provided in the embodiments of this application. Figure 1 ;

[0021] Figure 2 A schematic diagram of the system flow path of the electronic expansion valve in the T2 model provided for embodiments of this application;

[0022] Figure 3 A schematic diagram of the system flow path of the electronic expansion valve in the KS model provided for embodiments of this application;

[0023] Figure 4 A flowchart illustrating a variable frequency air conditioner electronic expansion valve control scenario provided for an embodiment of this application;

[0024] Figure 5 A schematic diagram of a control device for an air conditioner provided in an embodiment of this application;

[0025] Figure 6 A schematic diagram of the structure of an air conditioner provided for an embodiment of this application. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0028] In the following description, the terms "first, second, third" are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0030] Embodiments of this application provide a control method for an air conditioner. The outdoor controller of the air conditioner is connected to an electronic expansion valve, which can operate in different system flow paths. (Refer to...) Figure 1As shown, the method includes the following steps:

[0031] Step 101: In response to the command to start the target operating mode, control the electronic expansion valve to be fully open and control the air conditioner compressor to start.

[0032] In practical applications, the target operating mode includes any of the operating modes supported by the air conditioner, including but not limited to: heating mode and non-heating mode (such as cooling mode, dehumidification mode, defrosting mode, etc.).

[0033] In practical applications, after entering heating or cooling mode for the first time, the electronic expansion valve should be fully opened.

[0034] In practical applications, the executing entity in this embodiment can be an air conditioner, which has functions such as data processing, data communication, and program execution. Typically, the operation of each component in the air conditioner can be driven by an outdoor controller; therefore, the executing entity in this embodiment can also be the outdoor controller of the air conditioner.

[0035] In practical applications, the instruction for the target operating mode can be either received by the air conditioner or generated by the air conditioner itself. For example, the received instruction can come from an electronic device connected to the air conditioner (such as a smartphone or remote control). The generated instruction can be one that the air conditioner generates when it detects that the duration between the current time and the last time it entered the target operating mode meets a specific time requirement.

[0036] Step 102: Obtain the first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor starts, the compressor running timer is turned on and reaches the first time period.

[0037] In practical applications, after fully opening the electronic expansion valve and waiting for the compressor to run for a certain period of time, the change in the indoor evaporator coil temperature is obtained to determine whether there is a significant change in the indoor evaporator coil temperature. The first period of time can be flexibly set based on the air conditioner model; this application does not specify it.

[0038] Step 103: In response to the change conditions corresponding to the target operating mode, control the electronic expansion valve to be in the fully open state.

[0039] In practical applications, if the first parameter meets the change conditions corresponding to the target operating mode, it means that in the current mode, there is no need for electronic expansion valve throttling; the electronic expansion valve can be fully open. It should be noted that the change conditions differ for different operating modes. For example, the criteria for determining whether there is a significant change in the indoor evaporator coil temperature differ between heating and cooling modes.

[0040] In practical applications, the same outdoor controller is used with different system flow paths to precisely control the electronic expansion valve under different operating modes.

[0041] In practical applications, the opening degree in the fully open state can be flexibly set according to the model of the air conditioner, and this application does not impose specific limitations.

[0042] The air conditioner control method provided in this application embodiment connects the outdoor controller of the air conditioner to an electronic expansion valve, which can operate in different system flow paths. The method includes: responding to an instruction to activate a target operating mode, controlling the electronic expansion valve to be fully open, controlling the air conditioner compressor to start, and acquiring a first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor starts, starts the compressor operation timer and reaches a first time; responding to the first parameter satisfying the change condition corresponding to the target operating mode, controlling the electronic expansion valve to be fully open; that is, this application uses the same outdoor controller with different system flow paths to achieve precise control of the solenoid valves in different system flow paths under the target operating mode, thereby achieving reliable control of different system flow paths.

[0043] In a feasible scenario, see Figure 2 As shown, Figure 2 This is the system flow diagram for the electronic expansion valve in the T2 model, which is used for throttling in heating mode; see [link / reference]. Figure 3 As shown, Figure 3 This is a system flow diagram of the electronic expansion valve in the KS model. The electronic expansion valve is used for throttling in non-heating modes (such as cooling modes).

[0044] In some embodiments, the target operating mode is a heating mode. The first parameter satisfies the change conditions corresponding to the target operating mode, including: after the compressor starts running and the timer reaches a first duration, the difference between the first temperature value of the coil and the initial temperature value of the coil is greater than a first threshold, wherein the initial temperature value is the temperature value of the coil when the compressor starts. The first temperature value is the coil temperature collected when the compressor starts running and the timer reaches a first duration (e.g., 5 minutes) in the heating mode.

[0045] In practical applications, the initial temperature value is denoted as T20, the first temperature value as T21, and the first threshold as Thr1. Here, the first parameter = T21 - T20. When T21 - T20 > Thr1, it indicates that the first parameter meets the change conditions corresponding to the heating mode. For example, Thr1 = 8 degrees.

[0046] In some embodiments, the target operating mode is a non-heating mode, and the first parameter satisfies the change conditions corresponding to the target operating mode, including:

[0047] After the compressor starts running and the first duration is reached, the difference between the initial coil temperature and the second coil temperature is greater than the second threshold. The initial temperature is the coil temperature when the compressor starts. The second temperature is the coil temperature collected when the compressor starts running and the first duration (e.g., 5 minutes) is reached in non-heating mode (e.g., cooling mode).

[0048] In practical applications, the initial temperature value is denoted as T20, the second temperature value as T22, and the second threshold as Thr2. Here, the first parameter = T20 - T22. When T20 - T22 > Thr2, it indicates that the first parameter meets the change conditions corresponding to the non-heating mode (e.g., cooling mode). For example, Thr2 = 5 degrees.

[0049] In some embodiments, after obtaining the first parameter of the indoor evaporator of the air conditioner in step 102, the following steps may be performed:

[0050] First, in response to the first parameter not meeting the change conditions corresponding to the target operating mode, the opening of the electronic expansion valve is adjusted to the default opening.

[0051] In practical applications, if the first parameter does not meet the change conditions corresponding to the target operating mode, further judgment is required. In this case, the opening of the expansion valve is adjusted to the default opening (e.g., 190pls).

[0052] In practical applications, if T21-T20>Thr1 is not met in heating mode, or T20-T22>Thr2 is not met in cooling mode, it indicates that the first parameter does not meet the change conditions corresponding to the target operating mode, and further judgment is required. In this case, the opening of the electronic expansion valve should be adjusted to 190pls.

[0053] Secondly, the second parameter of the indoor evaporator of the air conditioner is obtained. The second parameter includes the change value of the coil temperature of the indoor evaporator after the compressor running time reaches the second duration with the electronic expansion valve at the default opening.

[0054] In practical applications, during further evaluation, the expansion valve opening is adjusted to the default opening, and then the compressor is allowed to run for a second period before it is determined whether there is a significant change in the indoor evaporator coil temperature. The second period can be flexibly set based on the air conditioner model; this application does not specify the exact duration.

[0055] Finally, in response to the change conditions corresponding to the target operating mode, the electronic expansion valve is controlled to be at the throttling opening.

[0056] In practical applications, if the second parameter meets the change conditions corresponding to the target operating mode, it indicates that there is a significant change, and the current mode requires the electronic expansion valve to throttle, controlling the electronic expansion valve to be at the throttle opening.

[0057] In practical applications, the target operating mode is heating mode. The second parameter satisfies the change conditions corresponding to the target operating mode, including: adjusting the opening of the electronic expansion valve to the default opening; after a second duration, the difference between the third temperature value of the coil and the initial temperature value of the coil is greater than the first threshold. The initial temperature value is the coil temperature value when the compressor starts. The third temperature value is the coil temperature collected after adjusting the opening of the electronic expansion valve to 190 pls in heating mode and running for a second duration (e.g., 5 minutes). This indicates that the system has an electronic expansion valve in heating mode, and the electronic expansion valve throttles in heating mode.

[0058] In practical applications, the target operating mode is a non-heating mode (such as cooling mode). The second parameter must meet the change conditions corresponding to the target operating mode, including: adjusting the opening of the electronic expansion valve to the default opening; after a second duration, the difference between the initial coil temperature and the fourth coil temperature value is greater than the second threshold. The initial temperature value is the coil temperature when the compressor starts. The fourth temperature value is the coil temperature collected after adjusting the electronic expansion valve opening to 190 pls in cooling mode and running for a second duration (e.g., 5 minutes). This indicates that the system has an electronic expansion valve in cooling mode, and the electronic expansion valve is throttling in cooling mode.

[0059] In practical applications, the air conditioner can calculate the corresponding throttling opening degree in any mode according to general logic. This application does not make specific limitations on the calculation of the throttling opening degree in different modes.

[0060] In some embodiments, after obtaining the second parameter of the indoor evaporator of the air conditioner, the method further includes:

[0061] In response to the second parameter not meeting the change conditions corresponding to the target operating mode, the compressor operating timer is reset to zero, and the step of obtaining the first parameter of the indoor evaporator is executed again.

[0062] In practical applications, if the second parameter does not meet the change conditions corresponding to the target operating mode, it means that after further judgment, no significant change is found, and the duration of the compressor's running time needs to be reset to zero and re-judged.

[0063] In some embodiments, after step 103 responds to the first parameter satisfying the change condition corresponding to the target operating mode and controls the electronic expansion valve to be in the fully open state, the following steps may also be performed:

[0064] Generate first control information for the target operating mode. The first control information includes: In the target operating mode, there is no electronic expansion valve, and the electronic expansion valve is controlled to be fully open; or...

[0065] Generate second control information under the target operating mode. The second control information includes: there is an electronic expansion valve in the target operating mode, and the electronic expansion valve is controlled to be at the throttling opening.

[0066] The first control information or the second control information is written into the E-chip of the air conditioner so that when the next instruction to start the target operating mode is received, the first control information or the second control information is read from the E-chip to perform corresponding control on the air conditioner.

[0067] In practical applications, E-chips include EEPROM, which stands for Electrically Erasable Programmable Read Only Memory.

[0068] In practical applications, when the judgment T21-T20>Thr1 is true in heating mode, it means that the judgment is successful. The judgment result and the corresponding control are written into the E-chip. After the next power-on, the control information in the E-chip is read and the system runs directly according to the memory result without the need for judgment again.

[0069] In a feasible scenario for controlling an electronic expansion valve in a variable frequency air conditioner, it is possible to achieve, for example... Figure 4 The control flow shown is as follows:

[0070] Step 400: Turn on the air conditioner and determine if it is in heating mode; if yes, proceed to step 401; otherwise, proceed to step 421.

[0071] Step 401: Determine if there is a memory heating mode. Otherwise, proceed to step 402. If yes, proceed to step 410.

[0072] Step 402: Start the compressor, record the initial temperature of T2 as T20, and fully open the electronic expansion valve.

[0073] T2 refers to the coil temperature of the indoor evaporator.

[0074] Step 403: Timing, record the temperature of T2 at 5 minutes as T21, and fully open the electronic expansion valve.

[0075] Step 404: Is T21-T20>8 degrees true? If yes, proceed to step 405; otherwise, proceed to step 406.

[0076] Step 405: In heating mode, the system has no electronic expansion valve; therefore, the electronic expansion valve in heating mode is fully open. Here, the absence of an electronic expansion valve may be due to throttling via a throttle valve.

[0077] Step 406: Set the opening of the electronic expansion valve to 190pls, and record the initial temperature of T2 as T23 after 5 minutes.

[0078] Step 407: Is T23-T20>8 degrees true? If yes, proceed to step 408; otherwise, proceed to step 409.

[0079] Step 408: The system has an electronic expansion valve in heating mode, and the electronic expansion valve throttles the flow in heating mode.

[0080] Step 409: If the judgment fails, the compressor running time is reset to zero and the judgment is repeated, then return to step 402;

[0081] Step 410: Determine if the heating mode has an electronic expansion valve; otherwise, proceed to step 405; otherwise, proceed to step 408.

[0082] Step 411: Write the judgment results obtained in steps 405 and 408 into E and record the results in E.

[0083] Step 421: Determine if there is a memory cooling mode. Otherwise, proceed to step 422. If yes, proceed to step 430.

[0084] Step 422: Start the compressor, record the initial temperature of T2 as T20, and fully open the electronic expansion valve.

[0085] T2 refers to the coil temperature of the indoor evaporator.

[0086] Step 423: Timing, record the temperature of T2 at 5 minutes as T22, and fully open the electronic expansion valve.

[0087] Step 424: Is T20-T22>5 degrees true? If yes, proceed to step 425; otherwise, proceed to step 426.

[0088] Step 425: In cooling mode, the system has no electronic expansion valve; therefore, the electronic expansion valve in cooling mode is fully open. Here, the absence of an electronic expansion valve may be due to throttling via a throttling valve.

[0089] Step 426: Set the opening of the electronic expansion valve to 190pls, and record the initial temperature of T2 as T24 after 5 minutes.

[0090] Step 427: Is T20-T24>5 degrees true? If yes, proceed to step 428; otherwise, proceed to step 429.

[0091] Step 428: The system has an electronic expansion valve in cooling mode, and the electronic expansion valve throttles the flow in cooling mode.

[0092] Step 429: If the judgment fails, the compressor running time is reset to zero and the judgment is repeated, then return to step 422;

[0093] Step 430: Determine if the cooling mode has an electronic expansion valve; otherwise, proceed to step 425; otherwise, proceed to step 428.

[0094] Step 431: Write the judgment results obtained in steps 425 and 428 into E and record the results in E.

[0095] This application also provides a control device for an air conditioner. Figure 5 As shown, the outdoor controller of the air conditioner is connected to an electronic expansion valve, which can operate in different system flow paths. The device includes:

[0096] The first processing module 501 is used to respond to the instruction to start the target operating mode, control the electronic expansion valve to be in a fully open state, control the compressor of the air conditioner to start; and obtain the first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor starts, the compressor running timer is started and reaches a first time;

[0097] The second processing module 502 is used to control the electronic expansion valve to be in a fully open state in response to the change conditions corresponding to the target operating mode of the first parameter.

[0098] In some embodiments, the second processing module 502 is configured to, in response to the first parameter not meeting the change conditions corresponding to the target operating mode, adjust the opening of the electronic expansion valve to the default opening; acquire the second parameter of the indoor evaporator of the air conditioner, wherein the second parameter includes the change value of the coil temperature of the indoor evaporator after the compressor running time reaches the second duration when the electronic expansion valve is at the default opening; and, in response to the second parameter meeting the change conditions corresponding to the target operating mode, control the electronic expansion valve to be at the throttling opening.

[0099] In some embodiments, the second processing module 502 is used to control the compressor running timer to be reset to zero and to execute the step of obtaining the first parameter of the indoor evaporator again in response to the second parameter not meeting the change conditions corresponding to the target operating mode.

[0100] In some embodiments, the target operating mode is a heating mode, and the first parameter satisfies the change conditions corresponding to the target operating mode, including: after the compressor starts running and reaches a first duration, the difference between the first temperature value of the coil and the initial temperature value of the coil is greater than a first threshold, wherein the initial temperature value is the temperature value of the coil when the compressor starts.

[0101] In some embodiments, the target operating mode is a non-heating mode, and the first parameter satisfies the change conditions corresponding to the target operating mode, including: after the compressor starts running and reaches a first duration, the difference between the initial temperature value of the coil and the second temperature value of the coil is greater than a second threshold, wherein the initial temperature value is the temperature value of the coil when the compressor starts.

[0102] In some embodiments, the second processing module 502 is used to generate first control information under the target operating mode, the first control information including: in the target operating mode there is no electronic expansion valve, the electronic expansion valve is controlled to be in a fully open state; or, generate second control information under the target operating mode, the second control information including: in the target operating mode there is an electronic expansion valve, the electronic expansion valve is controlled to be in a throttling opening.

[0103] The second processing module 502 is used to write the first control information or the second control information into the E-chip of the air conditioner, so that when the next instruction to start the target operating mode is received, the first control information or the second control information is read from the E-chip to perform corresponding control on the air conditioner.

[0104] The air conditioner control device provided in this application embodiment connects the outdoor controller of the air conditioner to an electronic expansion valve. The electronic expansion valve can operate in different system flow paths. The control device includes: a first processing module 501, used to control the electronic expansion valve to be fully open in response to an instruction to activate a target operating mode, and to control the compressor of the air conditioner to start; and to acquire a first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor starts, the compressor running time is started, and a first time duration is reached; and a second processing module 502, used to control the electronic expansion valve to be fully open in response to the change conditions corresponding to the target operating mode. The electronic expansion valve is used for throttling in heating mode or cooling mode. This application utilizes the same outdoor controller with different system flow paths to achieve precise control of the solenoid valves in different system flow paths under the target operating mode, thereby achieving reliable control of different system flow paths.

[0105] This application also provides an air conditioner, such as... Figure 6 As shown, the air conditioner 600 includes: a communication interface 601 and an outdoor controller 602; the outdoor controller 602 is connected to an electronic expansion valve ( Figure 6 (Not shown in the image) can be connected, and the electronic expansion valve can operate in different system flow paths; wherein, the communication interface 601 can be connected to the indoor unit of the air conditioner 600 (…). Figure 6 (Not shown in the image) to exchange information;

[0106] The outdoor controller 602 is connected to the communication interface 601 to enable information interaction with the indoor unit and to execute the control method of the air conditioner provided by one or more of the above technical solutions when running a computer program;

[0107] The memory 603 stores computer programs that can run on the outdoor controller 602.

[0108] Among them, the outdoor controller 602 is used to control the electronic expansion valve to be fully open and control the compressor of the air conditioner to start in response to the command to start the target operating mode;

[0109] The first parameter of the indoor evaporator of the air conditioner is obtained, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor is started, the compressor running timer is turned on and a first time period is reached;

[0110] In response to the change conditions corresponding to the target operating mode, the electronic expansion valve is controlled to be in the fully open state.

[0111] In some embodiments, the outdoor controller 602 is configured to adjust the opening of the electronic expansion valve to the default opening in response to the change conditions corresponding to the target operating mode not meeting the first parameter; and to acquire the second parameter of the indoor evaporator of the air conditioner, wherein the second parameter includes the change value of the coil temperature of the indoor evaporator after the compressor running time reaches the second duration when the electronic expansion valve is at the default opening.

[0112] In response to the change conditions corresponding to the target operating mode, the electronic expansion valve is controlled to be at the throttling opening.

[0113] In some embodiments, the outdoor controller 602 is configured to, in response to a change in the second parameter that does not meet the conditions corresponding to the target operating mode, control the compressor operating timer to be reset to zero and then execute the step of acquiring the first parameter of the indoor evaporator again.

[0114] In some embodiments, the target operating mode is a heating mode. The outdoor controller 602 is used to start the compressor running timer and after a first duration, the difference between the first temperature value of the coil temperature and the initial temperature value of the coil temperature is greater than a first threshold. The initial temperature value is the temperature value of the coil temperature when the compressor starts.

[0115] In some embodiments, the target operating mode is a non-heating mode. The outdoor controller 602 is used to start the compressor running timer and after a first duration, the difference between the initial temperature value of the coil and the second temperature value of the coil is greater than a second threshold. The initial temperature value is the temperature value of the coil when the compressor starts.

[0116] In some embodiments, the outdoor controller 602 is used to generate first control information under the target operating mode, the first control information including: in the target operating mode, there is no electronic expansion valve, and the electronic expansion valve is controlled to be in a fully open state; or,

[0117] Generate second control information under the target operating mode. The second control information includes: there is an electronic expansion valve in the target operating mode, and the electronic expansion valve is controlled to be at the throttling opening.

[0118] The first control information or the second control information is written into the E-chip of the air conditioner so that when the next instruction to start the target operating mode is received, the first control information or the second control information is read from the E-chip to perform corresponding control on the air conditioner.

[0119] Of course, in practical applications, the various components in the air conditioner 600 are coupled together through a bus system 604. It can be understood that the bus system 604 is used to realize the connection and communication between these components. In addition to a data bus, the bus system 604 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, in... Figure 6 The general designated all buses as Bus System 604.

[0120] The memory 603 in this embodiment is used to store various types of data to support the operation of the air conditioner 600. Examples of such data include any computer programs used to operate on the air conditioner 600.

[0121] The methods disclosed in the above embodiments of this application can be applied to, or implemented by, the outdoor controller 602. The outdoor controller 602 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the integrated logic circuitry of the hardware or by instructions in the form of software within the outdoor controller 602. The outdoor controller 602 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The outdoor controller 602 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, specifically in memory 603. The outdoor controller 602 reads information from memory 603 and, in conjunction with its hardware, completes the steps of the aforementioned method.

[0122] In an exemplary embodiment, the air conditioner 600 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0123] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or both. Specifically, non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Sync Link Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0124] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a memory 603 storing a computer program, which can be executed by the outdoor controller 602 of the air conditioner 600 to complete the steps of the aforementioned method on the client side.

[0125] Computer-readable storage media can be FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM, etc.

[0126] In an exemplary embodiment, this application also provides a computer product including a computer program that can be executed by the outdoor controller 602 of an air conditioner 600 to complete the steps of the aforementioned method on the client side.

[0127] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0128] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0129] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application.

Claims

1. A control method for an air conditioner, characterized in that, The outdoor controller of the air conditioner is connected to an electronic expansion valve, which can operate in different system flow paths. The method includes: In response to the command to activate the target operating mode, the electronic expansion valve is controlled to be fully open, and the compressor of the air conditioner is controlled to start. Obtain the first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor is started, the compressor running timer is turned on and a first time period is reached; In response to the first parameter satisfying the change condition corresponding to the target operating mode, the electronic expansion valve is controlled to be in a fully open state.

2. The control method according to claim 1, characterized in that, After obtaining the first parameter of the indoor evaporator of the air conditioner, the method further includes: In response to the first parameter not meeting the change conditions corresponding to the target operating mode, the opening degree of the electronic expansion valve is adjusted to the default opening degree; Obtain the second parameter of the indoor evaporator of the air conditioner, wherein the second parameter includes the change value of the coil temperature of the indoor evaporator after the electronic expansion valve is in the default opening state and the compressor operation time reaches the second duration; In response to the change conditions corresponding to the target operating mode met by the second parameter, the electronic expansion valve is controlled to be at the throttling opening.

3. The control method according to claim 2, characterized in that, After obtaining the second parameter of the indoor evaporator of the air conditioner, the method further includes: In response to the second parameter not meeting the change conditions corresponding to the target operating mode, the compressor operating timer is reset to zero, and the step of obtaining the first parameter of the indoor evaporator is executed again.

4. The control method according to any one of claims 1 to 3, characterized in that, The target operating mode is a heating mode, and the first parameter satisfies the following change conditions corresponding to the target operating mode: After the compressor starts running and the first duration is reached, the difference between the first temperature value of the coil and the initial temperature value of the coil is greater than the first threshold, wherein the initial temperature value is the temperature value of the coil when the compressor starts.

5. The control method according to any one of claims 1 to 3, characterized in that, The target operating mode is a non-heating mode, and the first parameter satisfies the following change conditions corresponding to the target operating mode: After the compressor starts running and the first duration is reached, the difference between the initial temperature value of the coil and the second temperature value of the coil is greater than the second threshold, wherein the initial temperature value is the temperature value of the coil when the compressor starts.

6. The control method according to claim 2, characterized in that, After controlling the electronic expansion valve to be fully open in response to the change condition corresponding to the target operating mode of the first parameter, the method further includes: Generate first control information for the target operating mode, the first control information including: in the target operating mode there is no electronic expansion valve, control the electronic expansion valve to be in the fully open state; or... Generate second control information under the target operating mode, the second control information including: there is an electronic expansion valve in the target operating mode, and control the electronic expansion valve to be at the throttling opening; The first control information or the second control information is written into the E-chip of the air conditioner so that when the next instruction to start the target operating mode is received, the first control information or the second control information is read from the E-chip to perform corresponding control on the air conditioner.

7. A control device for an air conditioner, characterized in that, The outdoor controller of the air conditioner is connected to an electronic expansion valve, which can operate in different system flow paths. The control device includes: The first processing module is used to respond to the instruction to start the target operating mode, control the electronic expansion valve to be in a fully open state, control the compressor of the air conditioner to start; and obtain the first parameter of the indoor evaporator of the air conditioner, wherein the first parameter includes the change value of the coil temperature of the indoor evaporator after the compressor starts, the compressor operation timer is started and reaches a first time; The second processing module is used to control the electronic expansion valve to be in a fully open state in response to the change conditions corresponding to the target operating mode of the first parameter.

8. An air conditioner, characterized in that, include: An outdoor controller and a memory; wherein the outdoor controller is connected to the electronic expansion valve of the air conditioner, and the electronic expansion valve can operate in different system flow paths; The outdoor controller and the memory are connected via a communication link; The outdoor controller is used to execute the air conditioner control program in the memory to implement the steps in the air conditioner control method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The device stores executable instructions that, when executed, cause the outdoor controller to perform the control method of the air conditioner according to any one of claims 1 to 6.

10. A computer product comprising a computer program, characterized in that, When the computer program is executed by the outdoor controller, it implements the steps of the method of any one of claims 1 to 6.

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