Air conditioner transmission sound control method and device, computer device, and storage medium

Abstract

The application provides a control method and device for air conditioner transmission sound, computer equipment and storage medium, which are applied to the air conditioner. The method comprises the following steps: obtaining the current state value of the air conditioner, wherein the state value comprises noise difference value, compressor frequency, exhaust temperature and indoor heat exchanger pipeline temperature of the air conditioner; determining whether the noise of the air conditioner is transmission sound according to the state value; if the noise is transmission sound, at least one of the inner fan speed, the electronic expansion valve opening degree and the compressor frequency of the air conditioner is controlled until the real-time noise difference value of the air conditioner is greater than the preset noise difference value. According to the current state value of the air conditioner, the type of the air conditioner noise is determined first, and then at least one of the inner fan speed, the electronic expansion valve opening degree and the compressor frequency of the air conditioner is controlled according to the control process to control the generation of transmission sound, so that the problem of transmission sound of the air conditioner in the heating working condition is solved, and the user comfort is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning, and more particularly to a method, apparatus, computer equipment, and storage medium for controlling the transmission of sound in an air conditioner. Background Technology

[0002] Currently, air conditioners typically enhance their heating capacity by increasing the compressor's operating frequency and increasing the system pressure difference, especially when the outdoor ambient temperature is low. However, this common technical solution has a significant common problem in practice: under certain operating conditions, the indoor unit is prone to producing a "whistling" sound.

[0003] Specifically, this abnormal noise often occurs during winter heating operation: when the outdoor temperature is very low, the compressor needs to maintain high-frequency operation to ensure heating effect, and the system's target exhaust temperature is already relatively high. If the indoor temperature is also high and the user sets the fan speed to low, insufficient airflow on the indoor side will lead to a sharp drop in heat exchange efficiency. The combination of these two factors causes an abnormal increase in the condensing pressure and temperature inside the refrigeration system. At this time, the electronic expansion valve maintains a small opening to regulate the system. Due to the huge pressure difference and energy change before and after the refrigerant flows through the throttling component, a strong pressure pulse is generated. This pulse is transmitted along the pipeline to the heat exchanger of the indoor unit and excites vibration, ultimately producing a whistling sound through structural transmission. Noise spectrum analysis shows that this abnormal noise has obvious characteristic peaks, and its sound pressure level increases with the compressor frequency, seriously affecting the user experience. Summary of the Invention

[0004] This invention provides a method, apparatus, computer device, and storage medium for controlling the sound transmission of an air conditioner, in order to solve the problem of sound transmission in air conditioners during heating operation, thereby improving user comfort.

[0005] In a first aspect, embodiments of the present invention provide a method for controlling the transmission sound of an air conditioner, comprising: acquiring the current state value of the air conditioner, the state value including the noise difference of the air conditioner, the compressor frequency, the exhaust temperature and the indoor heat exchanger pipe temperature; determining whether the air conditioner noise is a transmission sound based on the state value; if it is a transmission sound, controlling at least one of the indoor fan speed, the opening degree of the electronic expansion valve and the compressor frequency of the air conditioner until the real-time noise difference of the air conditioner is greater than a preset noise difference value.

[0006] Secondly, embodiments of the present invention also provide a control device for transmitting sound in an air conditioner, which includes a unit for performing the above-described method.

[0007] Thirdly, embodiments of the present invention also provide a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-described method.

[0008] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing a computer program, the computer program including program instructions that, when executed by a processor, can implement the above-described method.

[0009] This application provides a method, device, computer equipment, and storage medium for controlling the transmission noise of an air conditioner. By first determining the type of air conditioner noise based on the current state value of the air conditioner, and then controlling at least one parameter among the air conditioner's internal fan speed, electronic expansion valve opening, and compressor frequency according to the control process, the generation of the transmission noise is controlled. This solves the problem of transmission noise in the air conditioner during heating, thereby improving user comfort. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A schematic flowchart illustrating the air conditioner sound transmission control method provided in an embodiment of the present invention;

[0012] Figure 2 A schematic diagram of a sub-process of the air conditioner sound transmission control method provided in an embodiment of the present invention;

[0013] Figure 3 A schematic diagram of a sub-process of the air conditioner sound transmission control method provided in an embodiment of the present invention;

[0014] Figure 4 A schematic diagram of a sub-process of the air conditioner sound transmission control method provided in an embodiment of the present invention;

[0015] Figure 5 A schematic diagram of a sub-process of the air conditioner sound transmission control method provided in an embodiment of the present invention;

[0016] Figure 6 A schematic diagram of a sub-process of the air conditioner sound transmission control method provided in an embodiment of the present invention;

[0017] Figure 7 A schematic diagram of a sub-process of the air conditioner sound transmission control method provided in an embodiment of the present invention;

[0018] Figure 8 A schematic block diagram of an air conditioner sound transmission control device provided in an embodiment of the present invention;

[0019] Figure 9A schematic block diagram of a computer device provided for an embodiment of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0022] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] Please see Figure 1 This is a schematic flowchart of a method for controlling the transmission noise of an air conditioner according to an embodiment of the present invention. In this application, the method for controlling the transmission noise of an air conditioner is applied in the field of air conditioning. It first determines the type of air conditioner noise based on the current state value of the air conditioner. After determining that the air conditioner noise is transmission noise, it then controls at least one parameter among the air conditioner's internal fan speed, electronic expansion valve opening, and compressor frequency according to the control flow to control the generation of transmission noise. This solves the problem of transmission noise occurring in air conditioners during heating operation, thereby improving user comfort.

[0025] This application provides a method, device, computer equipment, and storage medium for controlling the transmission noise of an air conditioner. The method for controlling the transmission noise of an air conditioner includes: acquiring the current state value of the air conditioner, the state value including the noise difference of the air conditioner, the compressor frequency, the exhaust temperature, and the indoor heat exchanger pipe temperature; determining whether the air conditioner noise is a transmission noise based on the state value; if it is a transmission noise, controlling at least one of the indoor fan speed, the opening degree of the electronic expansion valve, and the compressor frequency of the air conditioner until the real-time noise difference of the air conditioner is greater than a preset noise difference value.

[0026] This application first determines the type of air conditioner noise based on the current state value of the air conditioner. After determining that the air conditioner noise is transmitted sound, it then controls at least one parameter among the air conditioner's internal fan speed, electronic expansion valve opening, and compressor frequency according to the control process to control the generation of transmitted sound, thereby solving the problem of transmitted sound in the air conditioner under heating conditions and improving user comfort.

[0027] Figure 1 This is a flowchart illustrating the air conditioner sound transmission control method provided in an embodiment of the present invention. Figure 1 As shown, the method includes the following steps S10-S30.

[0028] S10. Obtain the current status value of the air conditioner, including the noise difference of the air conditioner, compressor frequency, exhaust temperature and indoor heat exchanger pipe temperature.

[0029] Specifically, air conditioner transmission noise refers to the noise generated within the air conditioning refrigeration system due to refrigerant flow and component operation, which is transmitted to the room through pipes, casing, and other structures, such as a "whistling" sound. This sound does not originate directly from the fan or compressor itself, but is the result of the coupled vibration of fluids and structures within the system. Generally, air conditioner transmission noise is related to the air conditioner's operating state, especially in heating mode. When the indoor fan speed is low, the outdoor temperature is low, and the indoor temperature is slightly higher, the indoor unit is more prone to producing this transmission noise, thus affecting the user experience.

[0030] However, various noises occur during air conditioner operation, such as compressor noise, fan noise, and refrigerant flow noise. Therefore, before reducing the transmitted sound, it is necessary to determine whether the noise emitted by the air conditioner is the transmitted sound. Through noise spectrum analysis, the transmitted sound has obvious characteristic peaks, and the transmitted sound is related to the operating status of the air conditioner, especially to the compressor frequency, system exhaust temperature, and indoor heat exchanger pipe temperature. Thus, the current status value of the air conditioner can be used to determine whether the noise of the air conditioner is the transmitted sound.

[0031] The status values ​​are a set of key parameters reflecting the current operating status of the air conditioner, used to determine whether there is abnormal noise transmission in the system. In this embodiment, the status values ​​include the air conditioner's noise difference, compressor frequency, exhaust temperature, and indoor heat exchanger pipe temperature. The noise difference refers to the difference between the total noise level and the peak noise level of the air conditioner. The total noise level is generally greater than the peak noise level, reflecting the sum of all sound energy within that time period, representing an overall sound pressure level. The peak noise level represents the most prominent sound pressure level within that time period, typically occurring at a specific frequency. When the air conditioner is operating smoothly, the noise energy distribution is relatively uniform, and the total noise level is significantly higher than the peak noise level, meaning the difference between the two is large. Conversely, when the system experiences abnormal howling, a large amount of energy is concentrated in one or a few narrow frequency bands, causing the peak noise level to rise sharply, making the total noise level very close to the peak noise level, meaning the noise difference becomes smaller. Therefore, the smaller the difference between the total noise value and the peak noise value (i.e., the noise difference), the sharper and more prominent the peak in the noise spectrum, which is a typical characteristic of abnormal sounds such as transmitted noise. The abnormal howling sound will be more obvious, meaning the more obvious the transmitted noise, the worse the sound quality of the air conditioner. Therefore, the noise difference should not be too small to reduce the transmitted noise. The compressor frequency is the number of times the compressor operates per unit time, directly affecting the refrigerant compression efficiency and the system's heating or cooling capacity. The exhaust temperature is the temperature at which the compressor discharges the refrigerant, an important indicator of the system's operating status. The indoor heat exchanger pipe temperature refers to the temperature of the indoor heat exchanger pipes, reflecting the indoor heat exchange efficiency.

[0032] In the aforementioned method for controlling the sound transmission of the air conditioner, obtaining the current state value is a fundamental step in achieving precise control. Its core lies in comprehensively capturing the operational characteristics of the system that may generate abnormal sound transmission through multi-dimensional parameter acquisition. In practice, the air conditioner control system will coordinate with multiple sensors and monitoring modules to collect and integrate various state parameters in real time.

[0033] First, the noise difference is obtained by relying on the noise sensor or microphone and spectrum analysis module built into the indoor unit. The sensor or microphone collects the noise signal of the indoor unit in real time. The system first calculates the total noise value (the comprehensive value of noise energy across the entire frequency band), and then locates the noise peak value (such as the highest decibel value of the frequency band where the howling sound is located) through spectrum analysis. The difference between the two is the noise difference.

[0034] Secondly, the compressor frequency is directly read from the compressor controller, and this parameter reflects the compressor's operating intensity in real time. In heating mode, when the outdoor temperature is low, the compressor operates at a high frequency, and the system automatically records this frequency value as an important basis for judging the refrigerant pulse intensity. The exhaust temperature is acquired by a temperature sensor installed on the compressor exhaust pipe, which transmits the real-time monitored temperature data to the control system. The indoor heat exchanger pipe temperature is obtained by a temperature sensor attached to the indoor heat exchanger pipe.

[0035] In this embodiment, after the status value is transmitted to the main control system of the air conditioner in real time, the system integrates it into a set of correlated data, providing a comprehensive basis for subsequent judgment on whether the noise is a transmission sound. By synchronously acquiring the noise difference, the compressor frequency, the exhaust temperature, and the indoor heat exchanger pipe temperature, the control system can accurately locate the root cause of the transmission sound, laying the foundation for targeted control, effectively avoiding misjudgments that may be caused by monitoring a single parameter, and improving the accuracy and timeliness of the transmission sound control.

[0036] S20. Determine whether the air conditioner noise is a transmitted sound based on the state value;

[0037] In this embodiment, the process of determining whether air conditioner noise is transmitted sound based on the state values ​​is a process of matching and verifying the current noise characteristics with the typical patterns of transmitted sound through multi-parameter collaborative analysis. In specific implementation, the system will interpret each of the state values ​​in turn and make a comprehensive judgment in combination with the generation mechanism of transmitted sound.

[0038] Specifically, the system determines the type of air conditioner noise based on the noise difference, the compressor frequency, the exhaust temperature, and the pipe temperature. Through the collaborative verification of the multi-dimensional state values, it determines whether the noise is a transmission sound, avoiding misjudgment based on a single parameter (such as mistakenly classifying other high-frequency noises as transmission sounds based solely on the noise difference). This ensures the accuracy of the transmission sound identification and provides a reliable basis for subsequent targeted control.

[0039] In one embodiment, such as Figure 2 As shown, step S20 may include steps S21-S24.

[0040] S21. Determine the magnitude of the noise difference and the preset noise difference;

[0041] S22. If the noise difference is less than or equal to the preset noise difference, then determine the magnitude of the compressor frequency and the preset frequency.

[0042] S23. If the compressor frequency is greater than or equal to the preset frequency, then determine the magnitude of the exhaust temperature and the preset exhaust temperature, and the magnitude of the pipe temperature and the preset pipe temperature.

[0043] S24. If the exhaust temperature is greater than or equal to the preset exhaust temperature and the pipe temperature is greater than or equal to the preset pipe temperature, then the noise is a transmission sound.

[0044] Specifically, the preset noise difference is a pre-set judgment threshold in the system, used to determine whether the noise difference conforms to the acoustic characteristics of the transmitted sound. The preset noise difference is an acceptable noise difference for most people, and the preset noise difference is basically the same for different models of air conditioners. The preset noise difference can be obtained during air conditioner testing and recorded in the system. The preset frequency is the minimum operating frequency of the compressor at which the transmitted sound occurs, a fixed parameter value for the air conditioner, and different models of air conditioners have different preset frequencies. The preset exhaust temperature is the preset parameter value for the minimum exhaust temperature at which the transmitted sound occurs. The preset pipe temperature is the minimum indoor heat exchanger pipe temperature at which the whistling sound occurs in the system.

[0045] In this embodiment, the system compares the calculated noise difference with the preset noise difference. If the noise difference is greater than the preset noise difference, it indicates that the overall noise spectrum is wide and flat, without any abnormal noise peaks. The system determines this to be normal operating noise, the diagnostic process ends, and the air conditioner is controlled to operate at the current state value.

[0046] When the noise difference is less than or equal to the preset noise difference, it initially indicates that there may be abnormal spike noise. The system will then initiate a subsequent operating condition judgment chain to confirm whether this is a transmission sound caused by system pressure pulses.

[0047] Next, the system will check the compressor frequency and compare it with the preset frequency. If the current compressor operating frequency is lower than the preset frequency, it indicates that the system load is light and it is difficult to generate high pressure sufficient to trigger a strong pulse. Therefore, the possibility of transmitted sound can be ruled out, indicating that there is no risk of transmitted sound, and the air conditioner will continue to operate in the current state. Only when the compressor frequency is greater than or equal to the preset frequency, indicating that the compressor frequency is high, will the diagnosis continue.

[0048] Finally, the system performs a dual temperature check, which is crucial for confirming whether the system is in a high-risk condition that could trigger the transmission sound. The system simultaneously checks whether the exhaust temperature is greater than or equal to the preset exhaust temperature, and whether the pipe temperature is greater than or equal to the preset pipe temperature. When both the exhaust temperature and pipe temperature are greater than or equal to the preset exhaust temperature, it indicates that the compressor is operating at high speed, generating high-pressure, high-temperature exhaust. Simultaneously, the indoor side may be experiencing poor heat exchange (manifested as excessively high pipe temperature) due to low fan speed or high ambient temperature, preventing effective heat dissipation and causing energy accumulation in the system. This leads to extreme instability of the refrigerant and a high risk of generating strong pressure pulses, thus producing the transmission sound. If both the exhaust temperature and pipe temperature are less than the preset exhaust temperature and the pipe temperature are less than the preset pipe temperature, it indicates no risk of transmission sound, and the air conditioner continues to operate under the current conditions.

[0049] Therefore, this embodiment verifies whether the air conditioner noise is a transmitted sound by considering three aspects: acoustics, power source, and system status. Only when all three conditions are simultaneously met—acoustic peak characteristics (the noise difference is less than or equal to the preset noise difference), power source high load characteristics (the compressor frequency is greater than or equal to the preset frequency), and system status high heat load characteristics (high exhaust temperature and high pipe temperature)—will the system ultimately diagnose the unpleasant "whirring" sound as a transmitted sound. This multi-dimensional, hierarchical joint judgment strategy greatly improves the accuracy and reliability of the diagnosis, laying a solid foundation for subsequent proactive system intervention and noise reduction control.

[0050] S30. If it is for transmitting sound, control at least one of the following: the speed of the indoor fan, the opening of the electronic expansion valve, and the frequency of the compressor of the air conditioner until the real-time noise difference of the air conditioner is greater than the preset noise difference.

[0051] Specifically, the indoor fan speed is the operating speed of the indoor fan, which directly affects the heat exchange efficiency of the indoor heat exchanger and the air circulation speed. The electronic expansion valve opening is the degree of valve opening that controls the refrigerant flow, determining the refrigerant circulation volume and pressure state within the system. The compressor frequency reflects the operating intensity of the compressor and is related to the refrigerant compression efficiency and system pressure. The real-time noise difference is the difference between the total noise value and the peak noise value monitored in real time during air conditioner operation. The smaller this value, the more noticeable the transmitted sound. Specifically, the real-time noise difference refers to the difference between the total noise value and the peak noise value generated by the air conditioner, obtained in real time when adjusting at least one of the parameters: the indoor fan speed, the electronic expansion valve opening, and the compressor frequency. The preset noise difference is an acceptable threshold set by the system. When the real-time noise difference is greater than this value, the transmitted sound is not noticeable; when the real-time noise difference is less than or equal to the preset noise difference, it indicates that the transmitted sound is noticeable and will cause user discomfort.

[0052] Therefore, when the system determines that the air conditioner noise is a transmitted sound, it will initiate a control process for the transmitted sound. Specifically, it will gradually improve the system's operating status by adjusting at least one of the following: the speed of the internal fan, the opening of the electronic expansion valve, and the frequency of the compressor, until the real-time noise difference is greater than the preset noise difference.

[0053] Throughout the process, the system consistently uses whether the real-time noise difference exceeds the preset noise difference as the criterion, flexibly combining and adjusting parameters: if adjusting a single parameter is sufficient to achieve the target, other adjustments are stopped; if multiple parameters are required, they are adjusted sequentially or simultaneously according to their degree of influence. By precisely controlling the key factors affecting the refrigerant pulse, the system can effectively eliminate transmitted noise and find a balance between noise control and operating efficiency, ensuring the comfort and stability of the air conditioning operation.

[0054] Therefore, this embodiment can control and adjust at least one parameter value among the air conditioner's indoor fan speed, electronic expansion valve opening, and compressor frequency according to the magnitude of the real-time noise difference and the preset noise difference, thereby solving the problem of noise transmission in the air conditioner under heating conditions and improving user comfort.

[0055] In one embodiment, such as Figure 3 As shown, step S30 may include steps S31-S34.

[0056] S31. Obtain the real-time speed of the internal fan and determine the real-time speed and the preset speed.

[0057] S32. If the real-time rotational speed is less than the preset rotational speed, then increase the rotational speed of the internal fan according to the preset increase value;

[0058] S33. After a preset time period, obtain the real-time noise difference and determine its magnitude compared with the preset noise difference;

[0059] S34. If the real-time noise difference is less than or equal to the preset noise difference, then the internal fan speed is increased again according to the preset increase value until the internal fan speed is equal to the preset speed.

[0060] In controlling the transmitted sound, this embodiment first adjusts the speed of the indoor fan. The entire suppression process is executed by a closed-loop control algorithm. The preset speed refers to the maximum speed of the indoor fan, a preset value; different air conditioner models have different preset speeds. The preset time period refers to the period after the air conditioner has run according to the adjusted parameters; this is a manually preset parameter value and serves as the benchmark for determining whether the speed adjustment has reached its upper limit. The preset increase value is a fixed increase in the indoor fan speed during each adjustment, ensuring a smooth adjustment process; this is a parameter value manually set in the system.

[0061] When the system needs to control the transmitted sound by adjusting the speed of the internal fan, it will gradually increase the speed according to the preset logic until the real-time noise difference reaches the standard or the preset speed limit is reached.

[0062] In practice, the system first acquires the real-time rotational speed of the indoor fan and compares it with the preset rotational speed to determine if there is room for improvement. If the real-time rotational speed is lower than the preset rotational speed, it indicates that there is room for adjustment. The system will then increase the indoor fan speed according to the preset increase value, thereby accelerating air circulation to enhance indoor heat exchange efficiency and reducing refrigerant pulses to lower transmitted noise.

[0063] After the rotational speed is increased, the system enters a waiting period of the preset time to allow the indoor heat exchange status and noise level to stabilize. After the waiting period ends, the system immediately collects the real-time noise difference value and compares it with the preset noise difference value. If the real-time noise difference value is still less than or equal to the preset noise difference value, it indicates that the transmitted noise has not been effectively controlled and the rotational speed needs to be further increased. At this time, the system will again increase the indoor fan speed by the same preset increase value, repeating the above "adjustment-waiting-monitoring" process.

[0064] After each adjustment of the indoor fan speed, the system rechecks the relationship between the real-time speed and the preset speed to ensure that the speed increase does not exceed the preset speed limit. This process continues until one of two situations occurs: first, the real-time noise difference is greater than the preset noise difference, the transmitted noise is effectively controlled, the adjustment process terminates, and the air conditioner operates according to the currently adjusted state; second, the indoor fan speed reaches the preset speed. At this point, even if the real-time noise difference still does not meet the standard, the speed is stopped from being increased further to avoid affecting the equipment's lifespan or energy consumption due to excessive speed.

[0065] Therefore, in this embodiment, by increasing the internal fan speed, indoor heat exchange can be enhanced, thereby reducing the exhaust temperature and the pipe temperature, and reducing the pulsation of the refrigerant inside the refrigeration system. Simultaneously, the higher fan speed can mask the harsh whistling noise. Furthermore, increasing the fan speed increases indoor heat, eliminating concerns about indoor cooling; therefore, the difference between the indoor ambient temperature and the preset temperature is not checked, thus reducing energy consumption.

[0066] In this embodiment, the entire adjustment process, through step-by-step increase of speed and interval monitoring, not only ensures effective control of transmitted sound, but also avoids the impact of sudden speed increase on system stability, achieving a balance between reducing noise and maintaining air conditioning operating efficiency.

[0067] Through this gradual, precise control based on real-time acoustic feedback, the system can efficiently and smoothly eliminate unpleasant transmitted sounds with minimal intervention, thereby improving the user experience.

[0068] In one embodiment, such as Figure 4 As shown, steps S34 can be followed by steps S341-S344.

[0069] S341. Obtain the current ambient temperature difference and determine the magnitude of the ambient temperature difference and the preset temperature difference.

[0070] S342. If the ambient temperature difference is greater than or equal to the preset temperature difference, the real-time opening of the electronic expansion valve is obtained and its size relative to the maximum opening is determined.

[0071] S343. If the real-time opening degree is greater than or equal to the maximum opening degree, then the compressor frequency is controlled.

[0072] S344. If the real-time opening degree is less than the maximum opening degree, then the opening degree of the electronic expansion valve is controlled.

[0073] Specifically, the ambient temperature difference refers to the difference between the actual indoor temperature and the target temperature set by the air conditioner, reflecting the gap between the actual and target temperatures. The preset temperature difference is a fixed value determined through experience and experimentation, set in advance within the system, used to determine whether enhanced heat exchange is needed to accelerate temperature regulation. The real-time opening degree refers to the current opening degree of the electronic expansion valve, directly affecting the refrigerant flow. The maximum opening degree is the maximum opening limit that the electronic expansion valve can reach, representing the upper limit of valve adjustment.

[0074] When the internal fan speed has reached the preset speed and it is not suitable to further increase the internal fan speed, it is necessary to adjust the opening of the electronic expansion valve and the compressor frequency in tandem. The system will then initiate subsequent linkage control procedures to further balance the effects of noise control and temperature regulation.

[0075] In practice, the system first acquires the current ambient temperature difference, i.e., the difference between the actual indoor temperature and the set target temperature, and compares it with the preset temperature difference. The purpose of this step is to determine if there is still significant pressure to adjust the current indoor temperature. If the ambient temperature difference is less than the preset temperature difference, it indicates that the indoor temperature is already close to the set temperature, and no further adjustment is needed. The control process ends here, and the air conditioner operates with the current parameters. If the ambient temperature difference is greater than or equal to the preset temperature difference, it indicates that the system's heat exchange capacity needs to be enhanced, and other components need further adjustment.

[0076] After confirming the need for enhanced heat exchange, the system acquires the real-time opening of the electronic expansion valve and compares it with the valve's maximum opening. As a key component controlling refrigerant flow, the opening of the electronic expansion valve directly affects the system's heat exchange efficiency: a larger opening results in a larger refrigerant flow and stronger heat exchange capacity. If the real-time opening is greater than or equal to the maximum opening, it indicates that the valve has no adjustment range and heat exchange cannot be improved by increasing the refrigerant flow. In this case, the system switches to controlling the compressor frequency, increasing the compressor's operating speed to increase refrigerant circulation efficiency, thereby enhancing the heat exchange effect and accelerating the approach of the indoor temperature to the set value.

[0077] If the real-time opening of the electronic expansion valve is less than the maximum opening, the system prioritizes adjusting the valve opening, increasing it by a preset margin to increase refrigerant flow. This is because adjusting the electronic expansion valve has a relatively small impact on system stability and allows for more precise control of the refrigerant circulation. With an increased opening, more refrigerant enters the heat exchanger to participate in heat exchange, improving overall heat exchange efficiency and helping to reduce the ambient temperature difference.

[0078] Throughout the process, the system consistently uses the ambient temperature difference as the core criterion, prioritizing the adjustment method with the least impact on the system (electronic expansion valve adjustment takes precedence over compressor frequency adjustment). This ensures effective temperature regulation while maximizing system stability and energy efficiency. This tiered, interconnected control logic avoids the limitations of adjusting a single component and achieves a dynamic balance between noise control and temperature regulation.

[0079] In one embodiment, such as Figure 5 As shown, step S344 may include steps S3441-S3443.

[0080] S3441. Increase the electronic expansion valve according to the preset increase value;

[0081] S3442. After a preset time period, obtain the real-time noise difference and determine its magnitude compared with the preset noise difference.

[0082] S3443. If the real-time noise difference is less than or equal to the preset noise difference, then the compressor frequency is controlled.

[0083] Specifically, when the real-time opening of the electronic expansion valve is less than or equal to the maximum opening, the system initiates a control process for the opening of the electronic expansion valve. In practice, the system first increases the opening of the electronic expansion valve by a preset increment, which is a fixed increase in opening magnitude each time the electronic expansion valve is adjusted, ensuring the smoothness of the adjustment process. Increasing the refrigerant flow reduces internal system pressure fluctuations and the intensity of refrigerant pulses, thereby mitigating noise transmission. For example, if the current opening is 180P, the maximum opening is 300P, and the preset increment is 20P, then the opening is adjusted to 200P. After adjustment, the system enters a preset waiting period (e.g., 30 seconds) to allow the refrigerant circulation, heat exchange efficiency, and noise level to stabilize sufficiently. After the waiting period, the system immediately collects the real-time noise difference and compares it with the preset noise difference.

[0084] If the real-time noise difference is still less than or equal to the preset noise difference, it indicates that increasing the opening of the electronic expansion valve alone has failed to effectively eliminate the transmitted noise. In this case, the system will switch to controlling the compressor frequency. This is because the generation of transmitted noise is closely related to system pressure and refrigerant pulses, and the compressor frequency directly affects these factors. Reducing the compressor frequency can reduce the refrigerant circulation intensity, further reducing system pressure and pulse amplitude. The system will appropriately reduce the compressor frequency based on the difference between the real-time noise difference and the preset noise difference, for example, from 55Hz to 50Hz, reducing pulse transmission by weakening the refrigerant circulation intensity within the system, until the real-time noise difference exceeds the preset noise difference, thus effectively controlling the transmitted noise.

[0085] If the real-time noise difference is greater than the preset noise difference when adjusting the opening of the electronic expansion valve, it indicates that the transmitted sound is effectively controlled, and the air conditioner will operate according to the current state parameters.

[0086] Throughout the process of controlling the transmitted sound by adjusting the opening of the electronic expansion valve, the system always uses the real-time noise difference as the core judgment indicator. First, it attempts to control the transmitted sound by adjusting the opening of the electronic expansion valve (a gentler adjustment method). If this method is insufficient, it then starts adjusting the compressor frequency. This ensures the effectiveness of noise control while minimizing the impact on the heating / cooling efficiency of the air conditioner, achieving a balance between operational stability and comfort.

[0087] In one embodiment, such as Figure 6 As shown, step S3443 may include steps S34431-S34434.

[0088] S34431. Obtain the real-time frequency of the compressor and determine its magnitude compared with the minimum frequency at the current gear.

[0089] S34432. If the real-time frequency is greater than or equal to the minimum frequency, then reduce the compressor frequency according to a preset reduction value;

[0090] S34433: After a preset time period, obtain the real-time noise difference and determine its magnitude compared with the preset noise difference;

[0091] S34434. If the real-time noise difference is less than or equal to the preset noise difference, then the opening of the electronic expansion valve and the frequency of the compressor are adjusted again according to the ambient temperature difference, the real-time opening of the electronic expansion valve and the real-time frequency of the compressor until the real-time noise difference is greater than the preset noise difference.

[0092] Specifically, the real-time frequency of the compressor is its current operating frequency (number of cycles per unit time), reflecting its workload. The minimum frequency at the current setting refers to the lowest possible operating frequency of the compressor allowed by the air conditioner at the current operating setting (e.g., heating). Operating below this frequency will affect the setting's functionality. The preset reduction value is the fixed reduction amount each time the compressor frequency is adjusted, ensuring smooth adjustment. The preset time period is the time interval after adjustment during which the system is allowed to stabilize, facilitating accurate monitoring of noise changes.

[0093] After adjusting the opening of the electronic expansion valve, if the real-time noise difference is still less than or equal to the preset noise difference, the system will initiate the control process for the compressor frequency.

[0094] In practice, the system first obtains the compressor's real-time frequency and compares it with the minimum frequency at the current setting to determine if there is room for frequency reduction. If the real-time frequency is greater than or equal to the minimum frequency, it indicates that the compressor can reduce its operating intensity. In this case, the system reduces the frequency according to the preset reduction value. For example, if the current real-time frequency is 50Hz, the minimum frequency is 40Hz, and the preset reduction value is 5Hz, then the frequency is adjusted to 45Hz. The purpose of reducing the compressor frequency is to weaken the refrigerant circulation intensity, reduce system pressure and refrigerant pulses, thereby reducing transmitted noise. If the real-time frequency is less than the minimum frequency, the air conditioner operates in the current state.

[0095] After adjusting the compressor frequency, the system enters a preset waiting period (e.g., 30 seconds) to allow the refrigerant circulation, system pressure, and noise level to stabilize. After the waiting period, the system again collects the real-time noise difference. If this value is still less than or equal to the preset noise difference, it indicates that simply reducing the compressor frequency is insufficient to control the transmitted noise, and multi-parameter coordinated adjustment needs to be initiated. At this time, the system combines the ambient temperature difference, the real-time opening of the electronic expansion valve, and the real-time compressor frequency to comprehensively adjust the electronic expansion valve opening and the compressor frequency (i.e., cyclic steps S341-S344, S3441-S3443, S34431-S34434): If the current ambient temperature difference is greater than or equal to the preset temperature difference, the real-time opening of the electronic expansion valve is further checked, and the opening of the electronic expansion valve is increased a second time according to the preset increase value; if after adjustment, the... If the real-time noise difference is still less than or equal to the preset noise difference, then under the current opening of the electronic expansion valve, check the real-time frequency of the compressor, and reduce the compressor frequency a second time according to the preset reduction value. Repeat this process N times (N times is a value obtained after multiple tests and preset in the system). If in any cycle the real-time noise difference is greater than the preset noise difference, the air conditioner is operated with the current state parameters. If after N cycles the real-time noise difference is still less than or equal to the preset noise difference, another control method is entered.

[0096] Therefore, this embodiment achieves effective control of transmitted noise by cyclically adjusting the opening of the electronic expansion valve and the compressor frequency in a coordinated manner. After each adjustment, it waits for a preset time period and monitors the real-time noise difference until the value exceeds the preset noise difference. The entire process ensures precise suppression of transmitted noise while minimizing the impact on the air conditioning temperature control effect by combining parameters such as ambient temperature, thus achieving a balance between transmitted noise control and operating efficiency.

[0097] In one embodiment, such as Figure 7As shown, steps S34434 may be followed by steps S41-S45.

[0098] S41. If, after N iterations, the real-time noise difference is still less than or equal to the preset noise difference, then the real-time noise difference of the first N iterations is input into the preset model.

[0099] S42. The preset model generates the optimal opening degree of the electronic expansion valve and the optimal speed of the compressor based on the real-time noise difference of the previous N cycles, and controls the operation of the air conditioner based on the optimal opening degree and the optimal speed.

[0100] S43. After a preset time period, obtain the current ambient temperature difference and the real-time noise difference, and determine the magnitude of the current ambient temperature difference and the preset temperature difference, and the magnitude of the real-time noise difference and the preset noise difference;

[0101] S44. If the current ambient temperature difference is greater than or equal to the preset temperature difference and the real-time noise difference is greater than the preset noise difference, then the air conditioner is controlled to operate according to the optimal opening degree and the optimal speed.

[0102] S45. If the current ambient temperature difference is less than the preset temperature difference and the real-time noise difference is less than or equal to the preset noise difference, then run according to the last state in the previous N cycles.

[0103] Specifically, the N cycles refer to the number of times the system repeatedly adjusts the opening of the electronic expansion valve and the compressor frequency according to a preset logic, where N is a preset maximum number of adjustments (e.g., 5 times). The preset model is an algorithm model trained with a large amount of operational data. This model obtains the corresponding noise difference by collecting a large amount of data on the electronic expansion valve opening and compressor frequency (converted into exhaust temperature and internal pipe temperature). The preset model can generate optimal operating parameters based on the historical real-time noise difference. The optimal opening is the best opening degree of the electronic expansion valve calculated by the preset model, and the optimal speed is the best operating speed of the compressor calculated by the model. The current ambient temperature difference is the difference between the current actual indoor temperature and the set temperature. The last state in the previous N cycles refers to the opening degree of the electronic expansion valve and the compressor frequency after the Nth adjustment.

[0104] When the system repeatedly adjusts the electronic expansion valve opening and the compressor frequency according to the ambient temperature difference, the real-time opening of the electronic expansion valve, and the real-time frequency of the compressor, after N cycles, if the real-time noise difference is still less than or equal to the preset noise difference, it indicates that conventional adjustment cannot effectively control the transmitted sound. At this time, the system will start the optimized control process.

[0105] In practice, the system first inputs all the real-time noise differences after each adjustment in the first N cycles (e.g., 2 dB for the first time, 1.8 dB for the second time, ..., 1.5 dB for the fifth time) into the preset model. This model analyzes the changing trends of these noise data and, combined with effective adjustment patterns from historical cases, calculates the optimal opening degree of the electronic expansion valve and the optimal speed of the compressor that balances noise control and operating efficiency. For example, the model might output an optimal opening degree of 250 steps and an optimal speed of 48 Hz.

[0106] The system then controls the air conditioner operation according to these two optimal parameters, and simultaneously enters a stabilization period of a preset time (e.g., 30 seconds) to allow the system to fully adapt to the new operating state. After the stabilization period ends, the system synchronously acquires the current ambient temperature difference and the real-time noise difference, and compares them with the preset temperature difference and the preset noise difference, respectively.

[0107] If the current ambient temperature difference is greater than or equal to the preset temperature difference (indicating that temperature regulation still needs to be strengthened), and the real-time noise difference is greater than the preset noise difference (the transmitted noise has been controlled), then the system will continue to operate at the optimal opening and optimal speed, ensuring that the transmitted noise is not obvious, while continuing to push the indoor temperature closer to the set value.

[0108] If the current ambient temperature difference is less than the preset temperature difference (the indoor temperature is close to the target temperature), and the real-time noise difference is less than or equal to the preset noise difference (the transmitted sound is still noticeable), the system abandons the optimal parameters and starts operating according to the last state in the previous N cycles. For example, it reverts to the opening of 230 steps and the speed of 50Hz after the 5th adjustment. This is because the temperature regulation pressure is low at this time, and maintaining the last state can avoid other problems that may be caused by the optimal parameters (such as excessively reducing the speed and affecting equipment stability). Under the premise of ensuring a suitable temperature, the stability of system operation is prioritized.

[0109] In this embodiment, through the intelligent decision-making of the preset model and the dual verification of actual parameters, a flexible response is achieved after the failure of conventional adjustment, which not only takes into account the core requirements of sound transmission control and temperature regulation, but also ensures the reliability of air conditioner operation.

[0110] More specifically, during the operation of steps S41-S45, if the current ambient temperature difference is detected to be less than the preset temperature difference, the subsequent adjustments are immediately stopped, and the system is operated according to the existing state (operating according to the last state in the previous N cycles) or further judgment is made according to other control logic.

[0111] This application first determines the type of air conditioner noise based on the current state value of the air conditioner. After determining that the air conditioner noise is transmitted sound, it then controls at least one parameter among the air conditioner's internal fan speed, electronic expansion valve opening, and compressor frequency according to the control process to control the generation of transmitted sound, thereby solving the problem of transmitted sound in the air conditioner under heating conditions and improving user comfort.

[0112] Figure 8 This is a schematic block diagram of an air conditioner sound transmission control device 300 provided in an embodiment of the present invention. Figure 8 As shown, corresponding to the above-described air conditioner sound transmission control method, the present invention also provides an air conditioner sound transmission control device 300. This air conditioner sound transmission control device 300 includes a unit for executing the above-described air conditioner sound transmission control method, and the device can be configured in a computer device. Specifically, please refer to... Figure 8 The air conditioner sound transmission control device 300 includes an acquisition unit 301, a judgment unit 302, and a control unit 303.

[0113] The acquisition unit 301 acquires the current status value of the air conditioner, including the noise difference of the air conditioner, the compressor frequency, the exhaust temperature and the indoor heat exchanger pipe temperature; acquires the real-time speed of the indoor fan and determines the real-time speed and the preset speed.

[0114] The judgment unit 302 determines whether the air conditioner noise is transmitted noise based on the state value; after a preset time period, it obtains the real-time noise difference and determines its magnitude compared with the preset noise difference; it obtains the current ambient temperature difference and determines its magnitude compared with the preset temperature difference; if the ambient temperature difference is greater than or equal to the preset temperature difference, it obtains the real-time opening of the electronic expansion valve and determines its magnitude compared with the maximum opening; after a preset time period, it obtains the real-time noise difference and determines its magnitude compared with the preset noise difference; it obtains the real-time frequency of the compressor and determines its magnitude compared with the minimum frequency at the current setting; after a preset time period, it obtains the real-time noise difference and determines its magnitude compared with the preset noise difference; After a set time period, the current ambient temperature difference and real-time noise difference are obtained, and the magnitudes of the current ambient temperature difference and preset temperature difference, and the real-time noise difference and preset noise difference are determined. The magnitude of the noise difference and preset noise difference is then determined. If the noise difference is less than or equal to the preset noise difference, the magnitude of the compressor frequency and preset frequency is determined. If the compressor frequency is greater than or equal to the preset frequency, the magnitudes of the exhaust temperature and preset exhaust temperature, and the magnitudes of the pipe temperature and preset pipe temperature are determined. If the exhaust temperature is greater than or equal to the preset exhaust temperature and the pipe temperature is greater than or equal to the preset pipe temperature, then the noise is a transmitted sound.

[0115] Control unit 303, if transmitting sound, controls at least one of the following: indoor fan speed, electronic expansion valve opening, and compressor frequency, until the real-time noise difference of the air conditioner is greater than a preset noise difference value; if the real-time speed is less than the preset speed, the indoor fan speed is increased according to a preset increase value; if the real-time noise difference is less than or equal to the preset noise difference value, the indoor fan speed is increased again according to the preset increase value until the indoor fan speed equals the preset speed; if the real-time opening is greater than or equal to the maximum opening, the compressor frequency is controlled; if the real-time opening is less than the maximum opening, the electronic expansion valve opening is controlled; the electronic expansion valve is increased according to a preset increase value; if the real-time noise difference is less than or equal to the preset noise difference value, the compressor frequency is controlled; if the real-time frequency is greater than or equal to the minimum frequency, the compressor frequency is decreased according to a preset decrease value; if the real-time noise difference is less than or equal to the preset noise difference value, the compressor frequency is controlled; if the real-time frequency is greater than or equal to the minimum frequency, the compressor frequency is decreased according to a preset decrease value; if the real-time noise difference is less than or equal to the preset noise difference value, the compressor frequency is decreased ... If a preset noise difference is found, the opening of the electronic expansion valve and the compressor frequency are adjusted again based on the ambient temperature difference, the real-time opening of the electronic expansion valve, and the real-time frequency of the compressor until the real-time noise difference is greater than the preset noise difference. If, after N cycles, the real-time noise difference is still less than or equal to the preset noise difference, the real-time noise difference from the previous N cycles is input into a preset model. The preset model generates the optimal opening of the electronic expansion valve and the optimal speed of the compressor based on the real-time noise difference from the previous N cycles, and controls the air conditioner operation based on the optimal opening and optimal speed. If the current ambient temperature difference is greater than or equal to the preset temperature difference and the real-time noise difference is greater than the preset noise difference, the air conditioner operation is controlled according to the optimal opening and optimal speed. If the current ambient temperature difference is less than the preset temperature difference and the real-time noise difference is less than or equal to the preset noise difference, the air conditioner operation is based on the last state of the previous N cycles.

[0116] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the control device for transmitting sound in the air conditioner and each unit can be referred to the corresponding description in the foregoing method embodiments. For the sake of convenience and brevity, it will not be repeated here.

[0117] The aforementioned air conditioner sound transmission control device 300 can be implemented as a computer program, which can, for example... Figure 9 It runs on the computer device shown.

[0118] Please see Figure 9 , Figure 9This is a schematic block diagram of a computer device provided in an embodiment of this application. The computer device 500 can be a terminal or a server. The terminal can be an electronic device with communication functions, such as a smartphone, tablet, laptop, desktop computer, personal digital assistant, or wearable device. The server can be a standalone server or a server cluster composed of multiple servers.

[0119] See Figure 9 The computer device 500 includes a processor 502, a memory, and a network interface 505 connected via a system bus 501. The memory may include a non-volatile storage medium 503 and internal memory 504.

[0120] The non-volatile storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032 includes program instructions that, when executed, cause the processor 502 to perform a method for controlling the transmission of sound in an air conditioner.

[0121] The processor 502 provides computing and control capabilities to support the operation of the entire computer device 500.

[0122] The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503. When the computer program 5032 is executed by the processor 502, the processor 502 can execute a control method for transmitting sound in an air conditioner.

[0123] This network interface 505 is used for network communication with other devices. Those skilled in the art will understand that... Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device 500 to which the present application is applied. The specific computer device 500 may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0124] The processor 502 is used to run a computer program 5032 stored in a memory to implement the steps of the above-described air conditioner sound transmission control method.

[0125] It should be understood that in the embodiments of this application, the processor 502 may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0126] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program includes program instructions and can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0127] Therefore, the present invention also provides a storage medium. This storage medium can be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. When executed by a processor, the program instructions cause the processor to perform the steps of the above-described air conditioner sound transmission control method.

[0128] The storage medium can be any computer-readable storage medium capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), magnetic disk, or optical disk.

[0129] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0130] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0131] The steps in the method of this invention can be adjusted, merged, or reduced in order according to actual needs. The units in the device of this invention can be merged, divided, or reduced according to actual needs. Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0132] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0133] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A control method of an air conditioner transfer sound, characterized by, The method includes: Obtain the current status value of the air conditioner, which includes the noise difference of the air conditioner, compressor frequency, exhaust temperature and indoor heat exchanger pipe temperature, wherein the noise difference refers to the difference between the total noise value and the peak noise value of the air conditioner. Determine whether the air conditioner noise is a transmitted sound based on the stated status value; If the noise is transmitted, control at least one of the following: the speed of the indoor fan, the opening of the electronic expansion valve, and the frequency of the compressor until the real-time noise difference of the air conditioner is greater than the preset noise difference. The step of determining whether the air conditioner noise is a transmitted sound based on the state value includes: Determine the relationship between the noise difference and the preset noise difference; If the noise difference is less than or equal to the preset noise difference, then determine the relationship between the compressor frequency and the preset frequency; If the compressor frequency is greater than or equal to the preset frequency, then determine the relationship between the exhaust temperature and the preset exhaust temperature and the relationship between the pipe temperature and the preset pipe temperature. If the exhaust temperature is greater than or equal to the preset exhaust temperature and the pipe temperature is greater than or equal to the preset pipe temperature, then the noise is a transmission sound. The step of controlling at least one of the air conditioner's indoor fan speed, electronic expansion valve opening, and compressor frequency until the real-time noise difference of the air conditioner exceeds a preset noise difference includes: Obtain the real-time speed of the internal fan and determine the relationship between the real-time speed and the preset speed; If the real-time rotational speed is less than the preset rotational speed, then the internal fan speed is increased according to the preset increase value; After a preset time period, the real-time noise difference is obtained and its relationship with the preset noise difference is determined. If the real-time noise difference is less than or equal to the preset noise difference, then the internal fan speed is increased again according to the preset increase value until the internal fan speed is equal to the preset speed. The step of further increasing the internal fan speed according to the preset increase value until the internal fan speed equals the preset speed includes the following: Obtain the current ambient temperature difference and determine the relationship between the ambient temperature difference and the preset temperature difference, wherein the ambient temperature difference refers to the difference between the actual indoor temperature and the target temperature set by the air conditioner; If the ambient temperature difference is greater than or equal to the preset temperature difference, the real-time opening of the electronic expansion valve is obtained and its relationship with the maximum opening is determined. If the real-time opening degree is greater than or equal to the maximum opening degree, then the compressor frequency is controlled; If the real-time opening degree is less than the maximum opening degree, the opening degree of the electronic expansion valve is controlled.

2. The method according to claim 1, characterized in that, The step of controlling the opening of the electronic expansion valve if the real-time opening is less than or equal to the maximum opening includes: The opening degree of the electronic expansion valve is increased according to a preset increase value; After a preset time period, the real-time noise difference is obtained and its relationship with the preset noise difference is determined. If the real-time noise difference is less than or equal to the preset noise difference, the compressor frequency is controlled.

3. The method according to claim 2, characterized in that, The step of controlling the compressor frequency if the real-time noise difference is less than or equal to the preset noise difference includes: Obtain the real-time frequency of the compressor and determine its relationship with the minimum frequency at the current gear. If the real-time frequency is greater than or equal to the minimum frequency, then the compressor frequency is reduced according to a preset reduction value; After a preset time period, the real-time noise difference is obtained and its relationship with the preset noise difference is determined. If the real-time noise difference is less than or equal to the preset noise difference, then the opening of the electronic expansion valve and the frequency of the compressor are adjusted again according to the ambient temperature difference, the real-time opening of the electronic expansion valve and the real-time frequency of the compressor until the real-time noise difference is greater than the preset noise difference.

4. The method according to claim 3, characterized in that, The step of adjusting the opening of the electronic expansion valve and the compressor frequency again based on the ambient temperature difference, the real-time opening of the electronic expansion valve, and the real-time frequency of the compressor, if the real-time noise difference is less than or equal to the preset noise difference, further includes: If, after N iterations, the real-time noise difference is still less than or equal to the preset noise difference, then the real-time noise difference from the first N iterations is input into the preset model, where N is the maximum number of adjustments set in advance. The preset model is an algorithm model trained with a large amount of running data, which can generate optimal running parameters based on the historical real-time noise difference. The preset model generates the optimal opening degree of the electronic expansion valve and the optimal frequency of the compressor based on the real-time noise difference of the previous N cycles, and controls the operation of the air conditioner based on the optimal opening degree and the optimal frequency. After a preset time period, the current ambient temperature difference and the real-time noise difference are obtained, and the relationship between the current ambient temperature difference and the preset temperature difference, as well as the relationship between the real-time noise difference and the preset noise difference, are determined. If the current ambient temperature difference is greater than or equal to the preset temperature difference and the real-time noise difference is greater than the preset noise difference, then the air conditioner is controlled to operate according to the optimal opening degree and the optimal speed. If the current ambient temperature difference is less than the preset temperature difference and the real-time noise difference is less than or equal to the preset noise difference, then the system will run according to the last state in the previous N cycles.

5. A control device for transmitting sound in an air conditioner, characterized in that, Includes a unit for performing the method as described in any one of claims 1-4.

6. A computer device, characterized in that, The computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method as described in any one of claims 1-4.

7. A storage medium, characterized in that, The storage medium stores a computer program, which includes program instructions that, when executed by a processor, implement the method as described in any one of claims 1-4.

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