Air conditioner, control method, device, and computer-readable storage medium thereof

Abstract

This application provides an air conditioner and its control method, device, and computer-readable storage medium. The air conditioner control method includes: determining whether there is a risk of the air conditioner emitting a preset type of noise; in response to determining that there is a risk of the air conditioner emitting a preset type of noise, controlling the air conditioner to enter a noise-proof operation mode; when the air conditioner enters the noise-proof operation mode, the electronic expansion valve of the air conditioner operates in open loop at a preset opening degree.

Description

Technical Field

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

[0002] In related technologies, air conditioners may emit a "ticking" noise during operation. This ticking noise has strong penetrating power and cannot be effectively eliminated by conventional noise reduction components, causing significant damage to the quiet indoor environment and resulting in considerable noise disturbance for users. Summary of the Invention

[0003] This application provides an air conditioner and its control method, device, and computer-readable storage medium, which can intervene and control the air conditioner when faced with preset types of noise risks such as clicking sounds, effectively preventing the generation of clicking sounds and noise problems caused by clicking sounds.

[0004] In a first aspect, embodiments of this application provide an air conditioner control method, comprising: determining whether there is a risk of the air conditioner emitting a preset type of noise; in response to determining that there is a risk of the air conditioner emitting a preset type of noise, controlling the air conditioner to enter a noise-proof operation mode; and when the air conditioner enters the noise-proof operation mode, the electronic expansion valve of the air conditioner operates in open loop at a preset opening degree.

[0005] In some embodiments, controlling the air conditioner to enter a noise-proof operation mode includes: controlling the electronic expansion valve of the air conditioner to operate in open loop at a first preset opening degree; after the electronic expansion valve operates in open loop at the first preset opening degree to a first preset time node, performing the following operations: in response to determining that the compressor exhaust temperature is less than a target exhaust temperature and a first exhaust temperature threshold, controlling the electronic expansion valve to operate in open loop at a second preset opening degree, the second preset opening degree being less than the first preset opening degree; in response to determining that the compressor exhaust temperature is greater than or equal to a second exhaust temperature threshold, controlling the electronic expansion valve to operate in closed loop according to a target exhaust temperature, the second exhaust temperature threshold being greater than the first exhaust temperature threshold; in response to determining that the compressor exhaust temperature is greater than or equal to at least one of the target exhaust temperature and the first exhaust temperature threshold and less than the second exhaust temperature threshold, controlling the electronic expansion valve to maintain open loop operation at the first preset opening degree.

[0006] In some embodiments, after controlling the electronic expansion valve to operate in an open loop at a second preset opening degree or after controlling the electronic expansion valve to maintain open loop operation at the first preset opening degree, the air conditioner control method includes: after reaching a second preset time node from the time the air conditioner enters the noise reduction operation mode, controlling the electronic expansion valve to operate in a closed loop according to the target exhaust temperature; the second preset time node is located after the first preset time node.

[0007] In some embodiments, before determining whether the compressor exhaust temperature is less than the target exhaust temperature and the first exhaust temperature threshold, the air conditioner control method includes: acquiring the outdoor ambient temperature, the indoor coil temperature, the outdoor coil temperature, and the compressor operating frequency; and determining the target exhaust temperature based on the outdoor ambient temperature, the indoor coil temperature, the outdoor coil temperature, and the compressor operating frequency.

[0008] In some embodiments, determining whether the air conditioner poses a risk of emitting a preset type of noise includes: determining whether the outdoor ambient temperature is lower than an outdoor temperature threshold, whether the compressor exhaust temperature is lower than a third exhaust temperature threshold, and whether the compressor operating frequency is lower than an operating frequency threshold; in response to determining that the outdoor ambient temperature is lower than the outdoor temperature threshold, the compressor exhaust temperature is lower than the third exhaust temperature threshold, and the compressor operating frequency is lower than the operating frequency threshold, determining that the air conditioner poses a risk of emitting a preset type of noise; in response to determining that the outdoor ambient temperature is greater than or equal to the outdoor temperature threshold, or the compressor exhaust temperature is greater than or equal to the third exhaust temperature threshold, or the compressor operating frequency is greater than or equal to the operating frequency threshold, determining that the air conditioner does not pose a risk of emitting a preset type of noise.

[0009] In some embodiments, when the air conditioner is provided with a second exhaust temperature threshold corresponding to the noise reduction operation mode, the third exhaust temperature threshold is greater than the second exhaust temperature threshold.

[0010] In some embodiments, the air conditioner control method includes: controlling the air conditioner to enter a normal operating mode in response to determining that there is no risk of the air conditioner emitting a preset type of noise.

[0011] Secondly, embodiments of this application provide an air conditioner control device, including: a risk prediction module configured to determine whether there is a risk of the air conditioner emitting a preset type of noise; a prevention control module configured to control the air conditioner to enter a noise-proof operation mode in response to determining that there is a risk of the air conditioner emitting a preset type of noise; and when the air conditioner enters the noise-proof operation mode, the electronic expansion valve of the air conditioner operates in open loop at a preset opening degree.

[0012] Thirdly, embodiments of this application provide an air conditioner, including: an electronic expansion valve; a compressor; a memory storing a computer program; and a processor, wherein the computer program, when executed by the processor, implements the air conditioner control method provided in any of the above embodiments.

[0013] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the steps in the air conditioner control method described above.

[0014] The air conditioner control method provided in this application embodiment can continuously monitor and predict whether there is a risk of the air conditioner emitting preset type noise, such as a clicking sound. When there is a risk of emitting preset type noise, the air conditioner is controlled to enter a noise reduction operation mode, and the operating parameters of the air conditioner, including at least the opening degree of the electronic expansion valve, are intervened and controlled to ensure that the air conditioner maintains a quiet operating state that does not emit preset type noise, avoiding noise reduction after preset type noise is generated, thereby effectively preventing the generation of preset type noise and noise problems caused by preset type noise. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart of an air conditioner control method provided in some embodiments of this application;

[0017] Figure 2 This is a partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0018] Figure 3 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0019] Figure 4 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0020] Figure 5 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0021] Figure 6 This is a structural diagram of an air conditioner provided in some embodiments of this application.

[0022] Explanation of key component symbols:

[0023] 1-Air conditioner, 10-Electronic expansion valve, 20-Compressor, 30-Processor, 40-Memory. Detailed Implementation

[0024] 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.

[0025] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0027] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0028] 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.

[0029] like Figure 1 As shown, in a first aspect, embodiments of this application provide an air conditioner control method, which includes S10 to S20, and can intervene and control the air conditioner 1 when faced with the risk of preset type noise, such as preset type noise, effectively preventing the generation of preset type noise and noise problems caused by preset type noise.

[0030] S10: Determine whether there is a risk of the air conditioner 1 emitting a preset type of noise.

[0031] Here, during the operation of air conditioner 1, its operating status can be continuously monitored. Based on the monitoring results, it can be pre-determined whether the current operating status of air conditioner 1 will cause it to emit a preset type of noise. If it is determined that the current operating status of air conditioner 1 will cause it to emit a preset type of noise, then it is determined that there is a risk of air conditioner 1 emitting the preset type of noise, and intervention control is needed to regulate its operating status. If it is determined that the current operating status of air conditioner 1 will not cause it to emit the preset type of noise, then it is determined that there is no risk of air conditioner 1 emitting the preset type of noise, and no intervention control is needed to regulate its operating status; air conditioner 1 can maintain its current operating status. Here, the specific type of preset noise can be determined according to actual needs and may include different types such as clicking sounds; this embodiment does not limit this.

[0032] S20: In response to determining that there is a risk of the air conditioner 1 emitting a preset type of noise, the air conditioner 1 is controlled to enter the noise reduction operation mode; when the air conditioner 1 enters the noise reduction operation mode, the electronic expansion valve 10 of the air conditioner 1 operates in open loop at the preset opening degree.

[0033] Here, a noise-proof operation mode can be preset in the control system of air conditioner 1. When it is determined that air conditioner 1 has a risk of emitting a preset type of noise, air conditioner 1 is controlled to enter the noise-proof operation mode, so that air conditioner 1 operates according to the preset operating parameters in the noise-proof operation mode. When air conditioner 1 operates according to the above-mentioned preset operating parameters, air conditioner 1 can be kept in a silent operation state without emitting the preset type of noise, thereby effectively preventing the generation of the preset type of noise. Here, when air conditioner 1 enters the noise-proof operation mode, electronic expansion valve 10 needs to operate in open loop according to the preset opening degree in the noise-proof operation mode, so that the actual opening degree of electronic expansion valve 10 is maintained at the preset opening degree, so as to ensure that air conditioner 1 maintains a silent operation state without emitting the preset type of noise. When controlling electronic expansion valve 10 to operate in open loop at the preset opening degree, other operating parameters such as compressor 20 operating frequency, indoor and outdoor fan speeds, etc., can be controlled without interfering with the precise temperature control operation of air conditioner 1, so as to ensure the comfort of indoor environment by accurately controlling the temperature.

[0034] Compared with related technologies, the air conditioner control method provided in this application embodiment can continuously monitor and predict whether there is a risk of the air conditioner 1 emitting preset type noise, such as a clicking sound. When there is a risk of emitting preset type noise, the air conditioner 1 is controlled to enter the noise reduction operation mode, and the operating parameters of the air conditioner 1, including at least the opening degree of the electronic expansion valve 10, are intervened and controlled to ensure that the air conditioner 1 is maintained in a quiet operation state that does not emit preset type noise, avoiding noise reduction after preset type noise is generated, thereby effectively preventing the generation of preset type noise and noise problems caused by preset type noise.

[0035] The specific control steps for the noise reduction operation mode can be determined according to actual needs, and this application embodiment does not limit this. For example... Figure 2 As shown, in some embodiments, S20 may include S21 to S22.

[0036] S21: Control the electronic expansion valve 10 of the air conditioner 1 to operate in open loop at the first preset opening degree.

[0037] Here, the first preset opening degree can be pre-set in the control system of the air conditioner 1, and can be determined in advance based on statistical analysis of historical operating data. The specific value of the first preset opening degree can be determined according to actual needs, and this application embodiment does not limit it; for example, the first preset opening degree can be 80%. When the electronic expansion valve 10 operates in open loop at the first preset opening degree, the compressor discharge temperature can be increased, thereby reducing the pressure inside the compressor 20 and reducing the pressure inside the compressor 20 to a safe range, thus effectively preventing the generation of preset type noise and noise problems caused by preset type noise. When controlling the electronic expansion valve 10 to operate in open loop at the first preset opening degree, other operating parameters such as the compressor 20 operating frequency and the speed of the indoor and outdoor fans can be controlled without interference, avoiding interference with the precise temperature control operation of the air conditioner 1, so that the air conditioner 1 can accurately control the temperature and ensure the comfort of the indoor environment.

[0038] S22: After the electronic expansion valve 10 operates in open loop at the first preset opening degree to the first preset time node, the following operations S221 to S223 are performed. Here, the first preset time node can be preset in the control system of the air conditioner 1, and is the time when the electronic expansion valve 10 has been operating in open loop at the first preset opening degree for a first preset time length. The specific values ​​of the first preset time node and the first preset time length can be determined according to actual needs, and this application embodiment does not limit them; for example, the first preset time length can be 10 minutes, and the first preset time node can be the time when 10 minutes have elapsed since the electronic expansion valve 10 has been operating in open loop at the first preset opening degree.

[0039] S221: In response to determining that the compressor exhaust temperature is less than the target exhaust temperature and the first exhaust temperature threshold, the electronic expansion valve 10 is controlled to operate in open loop at the second preset opening degree.

[0040] Here, the compressor discharge temperature can be directly measured by a temperature sensor or indirectly measured by other parameters, characterizing the current discharge temperature of compressor 20. Here, the second preset opening degree can be preset in the control system of air conditioner 1, and can be determined in advance based on statistical analysis of historical operating data, and the second preset opening degree is less than the first preset opening degree. The specific value of the second preset opening degree can be determined according to actual needs, and this application embodiment does not limit it; for example, the second preset opening degree can be 60%. Here, the target discharge temperature can be determined based on current environmental parameters and current operating parameters, belonging to the target temperature that compressor 20 needs to achieve in its discharge; the first discharge temperature threshold can be preset in the control system of air conditioner 1 to determine the current state of the compressor discharge temperature.

[0041] After the electronic expansion valve 10 operates in open loop at the first preset opening degree to the first preset time node, and it is determined that the compressor exhaust temperature is less than the target exhaust temperature and the first exhaust temperature threshold, it indicates that the preset type of noise risk of the air conditioner 1 has not been completely eliminated, and the current operating state does not meet the expected elimination effect of the preset type of noise risk. Further intervention and control of the operating state of the air conditioner 1 is required. At this time, the electronic expansion valve 10 can be controlled to operate in open loop at the second preset opening degree to further increase the compressor exhaust temperature and reduce the pressure inside the compressor 20, so that the pressure inside the compressor 20 is further reduced to a safe range, thereby more effectively preventing the generation of preset type noise and noise problems caused by preset type noise.

[0042] When the electronic expansion valve 10 operates in open loop at the second preset opening degree, other operating parameters such as the compressor 20 operating frequency and the speed of the indoor and outdoor fans can be controlled without interference. This avoids interfering with the precise temperature control of the air conditioner 1, ensuring the air conditioner 1 can accurately control the temperature and maintain indoor comfort. Furthermore, by comparing the compressor exhaust temperature with the target exhaust temperature and the first exhaust temperature threshold, it is possible to accurately determine whether the rise in compressor exhaust temperature meets expectations. If the expected rise is not achieved, further intervention control can be implemented to maintain control accuracy.

[0043] S222: In response to determining that the compressor discharge temperature is greater than or equal to a second discharge temperature threshold, the electronic expansion valve 10 is controlled to operate in a closed loop according to the target discharge temperature. Here, the second discharge temperature threshold can be preset in the control system of the air conditioner 1 to determine the current state of the compressor discharge temperature, and the second discharge temperature threshold is greater than the first discharge temperature threshold. The specific values ​​of the first discharge temperature threshold and the second discharge temperature threshold can be determined according to actual needs, and this application embodiment does not limit them. For example, the range of the first discharge temperature threshold can be 35℃~39℃, such as 35℃, 36℃, 37℃, 38℃ or 39℃; for example, the range of the second discharge temperature threshold can be 40℃~45℃, such as 40℃, 41℃, 42℃, 43℃, 44℃ or 45℃.

[0044] After the electronic expansion valve 10 operates in open loop at the first preset opening degree until the first preset time point, and it is determined that the compressor discharge temperature is greater than or equal to the second discharge temperature threshold, it can be considered that the preset type of noise risk of the air conditioner 1 has been eliminated. At this time, the electronic expansion valve 10 can be controlled to operate in closed loop according to the target discharge temperature. When the electronic expansion valve 10 operates in closed loop according to the target discharge temperature, the air conditioner 1 can perform feedback control on operating parameters, including the opening degree of the electronic expansion valve 10 and other operating parameters such as the operating frequency of the compressor 20 and the speed of the indoor and outdoor fans, so as to maintain the compressor discharge temperature at the target discharge temperature. At this time, it can be considered that the air conditioner 1 exits the noise-proof operation mode and enters the normal operation mode, such as the normal cooling mode.

[0045] S223: In response to determining that the compressor exhaust temperature is greater than or equal to at least one of the target exhaust temperature and the first exhaust temperature threshold and less than the second exhaust temperature threshold, the electronic expansion valve 10 is controlled to maintain open-loop operation at the first preset opening degree.

[0046] When the compressor exhaust temperature is determined to be greater than or equal to at least one of the target exhaust temperature and the first exhaust temperature threshold and less than the second exhaust temperature threshold, it indicates that the current operating state has achieved the expected effect in eliminating the preset type of noise risk, but has not completely eliminated the preset type of noise risk of air conditioner 1. At this time, the electronic expansion valve 10 can be controlled to continue to maintain open-loop operation at the first preset opening degree, which can gradually and completely eliminate the preset type of noise risk of air conditioner 1.

[0047] By controlling the air conditioner 1 in conjunction with S21 to S22, the electronic expansion valve 10 can be controlled to operate in open loop at a first preset opening degree with a larger value to avoid the air conditioner 1's heat exchange effect being reduced due to the electronic expansion valve 10's opening being too low. When the electronic expansion valve 10 operates in open loop at the first preset opening degree for a preset time, and the current operating state does not meet the expected effect of eliminating the preset type of noise risk, the electronic expansion valve 10 can be controlled to further reduce to the second preset opening degree to completely eliminate the preset type of noise risk of the air conditioner 1 and improve the prevention effect of the preset type of noise. When the electronic expansion valve 10 operates in open loop at the first preset opening degree for a preset time and the preset type of noise risk of the air conditioner 1 has been eliminated, the electronic expansion valve 10 can be controlled to operate in closed loop according to the target exhaust temperature to avoid a continuous impact on the heat exchange effect of the air conditioner 1.

[0048] like Figure 3 As shown, in some examples, the air conditioner control method may include S23 after S221 or S223.

[0049] S23: After reaching the second preset time node from when the air conditioner 1 enters the noise reduction operation mode, control the electronic expansion valve 10 to operate in closed loop according to the target exhaust temperature.

[0050] The second preset time node can be pre-set in the control system of the air conditioner 1, and is the time when the electronic expansion valve 10 has been running in open loop at the first preset opening degree for a second preset time length. Here, the second preset time node is located after the first preset time node. The specific values ​​of the second preset time node and the second preset time length can be determined according to actual needs, and this application embodiment does not limit them; for example, the second preset time length can be 10 minutes, and the second preset time node can be the time when 20 minutes have passed since the electronic expansion valve 10 has been running in open loop at the second preset opening degree.

[0051] Here, the second preset time node can be used as the control time node for the electronic expansion valve 10 to exit open-loop operation. For example, after the second preset time node is reached, it can be assumed that the noise risk of the preset type of air conditioner 1 is relatively low, and the electronic expansion valve 10 can be shut down from open-loop operation. Furthermore, by setting the second preset time node, long-term open-loop operation of the electronic expansion valve 10 can be avoided, thereby preventing a mismatch between the heat exchange performance of the air conditioner 1 and the actual heat exchange needs, thus ensuring the heat exchange effect of the air conditioner 1 during long-term operation.

[0052] like Figure 4 As shown, in some examples, the air conditioner control method may include S2201 to S2202 before S221 or S223.

[0053] S2201: Acquires outdoor ambient temperature, indoor coil temperature, outdoor coil temperature, and compressor 20 operating frequency. Here, the outdoor ambient temperature can be measured in real time by a temperature sensor installed on the outdoor side, the indoor coil temperature can be measured in real time by a temperature sensor installed on the indoor heat exchange coil, and the outdoor coil temperature can be measured in real time by a temperature sensor installed on the outdoor heat exchange coil.

[0054] S2202: Determine the target exhaust temperature based on the outdoor ambient temperature, indoor coil temperature, outdoor coil temperature, and compressor 20 operating frequency. Here, the specific algorithm for calculating the target exhaust temperature based on the outdoor ambient temperature, indoor coil temperature, outdoor coil temperature, and compressor 20 operating frequency can be determined according to actual needs, and this embodiment does not limit it.

[0055] The specific method for determining whether air conditioner 1 poses a risk of emitting a preset type of noise can be determined according to actual needs, and this application embodiment does not limit this. For example... Figure 5 As shown, in some embodiments, S10 may include S11 to S13.

[0056] S11: Determine whether the outdoor ambient temperature is lower than the outdoor temperature threshold, whether the compressor exhaust temperature is lower than the third exhaust temperature threshold, and whether the compressor 20 operating frequency is lower than the operating frequency threshold.

[0057] Here, the outdoor temperature threshold, the third exhaust temperature threshold, and the operating frequency threshold can be preset in the control system of the air conditioner 1, serving as indicators to determine whether the air conditioner 1 poses a risk of emitting a preset type of noise. The specific values ​​of the outdoor temperature threshold, the third exhaust temperature threshold, and the operating frequency threshold can be determined according to actual needs, and this embodiment does not limit this. For example, the outdoor temperature threshold can range from 30℃ to 32℃, such as 30℃, 31℃, or 32℃; for example, the operating frequency threshold can be 20Hz.

[0058] In some examples, the third exhaust temperature threshold can be set to be greater than the second exhaust temperature threshold mentioned above. This reduces the time that the air conditioner 1 operates in noise-proof mode, allowing it to exit noise-proof mode more quickly and return to normal operation, thus avoiding a significant impact on the heat exchange performance of the air conditioner 1 under low-frequency and low-load conditions.

[0059] S12: In response to determining that the outdoor ambient temperature is less than the outdoor temperature threshold, the compressor exhaust temperature is less than the third exhaust temperature threshold, and the compressor 20 operating frequency is less than the operating frequency threshold, it is determined that there is a risk of the air conditioner 1 emitting a preset type of noise.

[0060] S13: In response to determining that the outdoor ambient temperature is greater than or equal to the outdoor temperature threshold, or the compressor exhaust temperature is greater than or equal to the third exhaust temperature threshold, or the compressor 20 operating frequency is greater than or equal to the operating frequency threshold, determine that there is no risk of the air conditioner 1 emitting a preset type of noise.

[0061] In other words, as long as the following three conditions are not met simultaneously: the outdoor ambient temperature is less than the outdoor temperature threshold, the compressor exhaust temperature is less than the third exhaust temperature threshold, and the compressor 20 operating frequency is less than the operating frequency threshold, it can be considered that the air conditioner 1 does not pose an imminent risk of emitting the preset type of noise.

[0062] By using outdoor temperature threshold, third exhaust temperature threshold and operating frequency threshold to determine whether there is a risk of the air conditioner 1 emitting preset type noise, risk prediction can be made more comprehensively and accurately, reducing misjudgment and premature or delayed intervention control caused by misjudgment, avoiding the decline in heat exchange performance of the air conditioner 1 due to premature intervention control, or the generation of preset type noise due to delayed intervention control.

[0063] like Figure 1 As shown, in some embodiments, the air conditioner control method may include S30.

[0064] S30: In response to determining that there is no risk of the air conditioner 1 emitting a preset type of noise, the air conditioner 1 is controlled to enter a normal operating mode. Here, the normal operating mode may include, for example, a normal cooling mode, a normal heating mode, etc.; for example, the normal operating mode may be limited to a normal cooling mode. Here, the electronic expansion valve 10 can operate in a closed loop according to the target exhaust temperature. When the electronic expansion valve 10 operates in a closed loop according to the target exhaust temperature, the air conditioner 1 can perform feedback control on operating parameters including the opening degree of the electronic expansion valve 10 and other operating parameters such as the operating frequency of the compressor 20 and the speed of the indoor and outdoor fans, so as to make the compressor exhaust temperature reach or maintain the target exhaust temperature.

[0065] Secondly, embodiments of this application provide an air conditioner control device, which includes a risk prediction module and a prevention control module. The risk prediction module is configured to determine whether there is a risk of the air conditioner 1 emitting a preset type of noise. The prevention control module is configured to control the air conditioner 1 to enter a noise-proof operation mode in response to determining that there is a risk of the air conditioner 1 emitting a preset type of noise. Here, when the air conditioner 1 enters the noise-proof operation mode, the electronic expansion valve 10 of the air conditioner 1 operates in open loop at a preset opening degree.

[0066] Thirdly, this application provides an air conditioner 1, which includes an electronic expansion valve 10, a compressor 20, a processor, and a memory. The memory stores a computer program, which, when executed by the processor, implements the air conditioner control method provided in any of the above embodiments. The structural type of the air conditioner 1 can be determined according to actual needs, and may include, for example, a wall-mounted air conditioner, a floor-standing air conditioner, or a window air conditioner; this application does not limit this type. The functional type of the air conditioner 1 can be determined according to actual needs, and may include, for example, a cooling and heating air conditioner or a cooling-only air conditioner; this application does not limit this type.

[0067] Processor 30 is connected to memory 40 and can perform various actions and processes according to the program stored in memory 40. Specifically, processor 30 can be an integrated circuit chip with signal processing capabilities. The processor 30 can be a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, and can be based on x86 architecture or ARM architecture.

[0068] Memory 40 may be volatile or non-volatile memory, or may include both. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) 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), 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), synchronous linked dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). It should be noted that memory 40 of the methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0069] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor 30 to execute the steps in the control method of any of the above embodiments.

[0070] For example, the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards, and flash memory devices (e.g., EPROMs (Erasable Programmable Read-Only Memory), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the embodiments of this application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0071] The above provides a detailed description of an air conditioner and its control method, apparatus, and computer-readable storage medium 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, include: Determine if the air conditioner poses a risk of emitting a preset type of noise; In response to the determination that the air conditioner poses a risk of emitting a preset type of noise, the air conditioner is controlled to enter a noise-proof operation mode; When the air conditioner enters the noise reduction mode, the electronic expansion valve of the air conditioner operates in open loop at a preset opening degree; Controlling the air conditioner to enter a noise-reducing operation mode includes: The electronic expansion valve of the air conditioner is controlled to operate in open loop at a first preset opening degree; After the electronic expansion valve operates in open loop at the first preset opening degree to the first preset time node, the following operations are performed; In response to determining that the compressor exhaust temperature is less than the target exhaust temperature and the first exhaust temperature threshold, the electronic expansion valve is controlled to operate in open loop at a second preset opening degree, which is less than the first preset opening degree; In response to determining that the compressor exhaust temperature is greater than or equal to a second exhaust temperature threshold, the electronic expansion valve is controlled to operate in closed loop according to the target exhaust temperature, wherein the second exhaust temperature threshold is greater than the first exhaust temperature threshold. In response to determining that the compressor exhaust temperature is greater than or equal to at least one of the target exhaust temperature and the first exhaust temperature threshold and less than the second exhaust temperature threshold, the electronic expansion valve is controlled to maintain open-loop operation at the first preset opening degree.

2. The air conditioner control method according to claim 1, characterized in that, After controlling the electronic expansion valve to operate in open loop at a second preset opening degree, or after controlling the electronic expansion valve to maintain open loop operation at the first preset opening degree, the air conditioner control method includes: After reaching the second preset time point from the time the air conditioner enters the noise reduction operation mode, the electronic expansion valve is controlled to operate in closed loop according to the target exhaust temperature; the second preset time point is located after the first preset time point.

3. The air conditioner control method according to claim 1, characterized in that, Before determining whether the compressor discharge temperature is lower than the target discharge temperature and the first discharge temperature threshold, the air conditioner control method includes: Obtain outdoor ambient temperature, indoor coil temperature, outdoor coil temperature, and compressor operating frequency; The target exhaust temperature is determined based on the outdoor ambient temperature, the indoor coil temperature, the outdoor coil temperature, and the compressor operating frequency.

4. The air conditioner control method according to claim 1, characterized in that, Determine if there is a risk of the air conditioner emitting a preset type of noise, including: Determine whether the outdoor ambient temperature is lower than the outdoor temperature threshold, whether the compressor exhaust temperature is lower than the third exhaust temperature threshold, and whether the compressor operating frequency is lower than the operating frequency threshold. In response to the determination that the outdoor ambient temperature is less than the outdoor temperature threshold, the compressor exhaust temperature is less than the third exhaust temperature threshold, and the compressor operating frequency is less than the operating frequency threshold, it is determined that the air conditioner has a risk of emitting a preset type of noise. In response to determining that the outdoor ambient temperature is greater than or equal to the outdoor temperature threshold, or the compressor exhaust temperature is greater than or equal to the third exhaust temperature threshold, or the compressor operating frequency is greater than or equal to the operating frequency threshold, it is determined that there is no risk of the air conditioner emitting a preset type of noise.

5. The air conditioner control method according to claim 4, characterized in that, When the air conditioner is provided with a second exhaust temperature threshold corresponding to the noise reduction operation mode, the third exhaust temperature threshold is greater than the second exhaust temperature threshold.

6. The air conditioner control method according to claim 1, characterized in that, The air conditioner control method includes: In response to determining that there is no risk of the air conditioner emitting a preset type of noise, the air conditioner is controlled to enter a normal operating mode.

7. An air conditioner control device, characterized in that, include: The risk prediction module is configured to determine whether the air conditioner poses a risk of emitting a preset type of noise; The prevention and control module is configured to control the air conditioner to enter a noise reduction mode in response to determining that there is a risk of the air conditioner emitting a preset type of noise; When the air conditioner enters the noise reduction mode, the electronic expansion valve of the air conditioner operates in open loop at a preset opening degree; Controlling the air conditioner to enter a noise-reducing operation mode includes: The electronic expansion valve of the air conditioner is controlled to operate in open loop at a first preset opening degree; After the electronic expansion valve operates in open loop at the first preset opening degree to the first preset time node, the following operations are performed; In response to determining that the compressor exhaust temperature is less than the target exhaust temperature and the first exhaust temperature threshold, the electronic expansion valve is controlled to operate in open loop at a second preset opening degree, which is less than the first preset opening degree; In response to determining that the compressor exhaust temperature is greater than or equal to a second exhaust temperature threshold, the electronic expansion valve is controlled to operate in closed loop according to the target exhaust temperature, wherein the second exhaust temperature threshold is greater than the first exhaust temperature threshold. In response to determining that the compressor exhaust temperature is greater than or equal to at least one of the target exhaust temperature and the first exhaust temperature threshold and less than the second exhaust temperature threshold, the electronic expansion valve is controlled to maintain open-loop operation at the first preset opening degree.

8. An air conditioner, characterized in that, include: Electronic expansion valve; compressor; Memory, which stores computer programs; A processor, wherein the computer program, when executed by the processor, implements the air conditioner control method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps of the air conditioner control method according to any one of claims 1 to 6.

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