Air conditioner control method and air conditioner having the same

Abstract

The application provides an air conditioner control method and an air conditioner with the same. The air conditioner control method comprises the following steps: acquiring an outdoor unit operation parameter, wherein the outdoor unit operation parameter comprises a fan target rotating speed and a compressor target operation frequency; constructing a noise threshold P1 corresponding to the fan target rotating speed and a noise threshold P2 corresponding to the compressor target operation frequency; acquiring a fan actual noise P 风机 and a compressor actual noise P 压缩机 ; comparing the fan actual noise P 风机 with the noise threshold P1, and comparing the compressor actual noise P 压缩机 with the noise threshold P2; and controlling the outdoor unit to operate at the current operation parameter according to the comparison result, or adjusting the fan rotating speed and / or the operation frequency of the compressor. The application solves the problem that the equipment inside the air conditioner cannot be optimized according to the noise when the air conditioner generates noise in the prior art.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more specifically, to an air conditioner control method and an air conditioner having the same. Background Technology

[0002] The continuous advancement of air conditioning technology and the improvement of people's living standards have made air conditioners an indispensable household appliance in daily life. However, the noise generated by air conditioners during operation, especially the noise from the outdoor unit, is often affected by a variety of factors, including compressor vibration, fan operating status, and differences in installation and usage environments. Current air conditioning noise control technology has some limitations, which restrict the ability of air conditioners to optimize noise in different scenarios.

[0003] In existing technologies, air conditioner noise control mostly relies on preset noise thresholds and fixed noise optimization programs. Noise is optimized by recording and updating the historical decibel values ​​of the air conditioner in a non-noise state; or, environmental noise and the air conditioner's own noise are obtained by sensors installed on the top cover or base of the air conditioner, and then a silent mode is selected according to a preset correlation.

[0004] However, the above method monitors the overall decibel level of the unit. When noise is generated, it cannot accurately identify the source of the noise, and therefore cannot make targeted adjustments to the air conditioner. Summary of the Invention

[0005] The main objective of this invention is to provide an air conditioner control method and an air conditioner having the same, so as to solve the problem in the prior art that when an air conditioner generates noise, it is impossible to perform targeted noise optimization on the internal equipment of the air conditioner.

[0006] To achieve the above objectives, according to one aspect of the present invention, an air conditioner control method is provided, comprising: acquiring outdoor unit operating parameters, the outdoor unit operating parameters including: a target fan speed and a target compressor operating frequency; constructing a noise threshold P1 corresponding to the target fan speed and a noise threshold P2 corresponding to the target compressor operating frequency; and acquiring the actual fan noise P. 风机 And the actual noise of the compressor P 压缩机 The actual noise level of the fan (P) 风机 Compare with the noise threshold P1, and simultaneously compare the actual compressor noise P 压缩机 Compare with the noise threshold P2; based on the comparison result, control the outdoor unit to operate at the current operating parameters; or, adjust the fan speed and / or the compressor operating frequency.

[0007] Furthermore, when the actual noise P of the fan... 风机 <Noise threshold P1, while the actual compressor noise P 压缩机 When the noise threshold P2 is less than 2, control the outdoor unit to operate at the current operating parameters.

[0008] Furthermore, before adjusting the fan speed and / or the compressor operating frequency, the control method also includes: obtaining the indoor unit evaporator temperature Tevaporator, and setting the indoor unit evaporator temperature Tevaporator... 蒸 Compare with the temperature threshold T; obtain the operating mode of the indoor unit, including: cooling mode and heating mode; adjust the fan speed and / or compressor operating frequency according to the comparison results and the operating mode.

[0009] Furthermore, when the actual noise P of the fan... 风机 <Noise threshold P1, actual compressor noise P 压缩机 > Noise threshold P2;

[0010] The indoor unit operates in cooling mode, with the evaporator temperature T. 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 >When the temperature threshold T is reached, the control methods include:

[0011] Reduce the compressor's operating frequency while maintaining the fan's current speed.

[0012] Furthermore, when the actual noise P of the fan... 风机 > Noise threshold P1, actual compressor noise P 压缩机 <Noise threshold P2;

[0013] The indoor unit operates in cooling mode, with the evaporator temperature T. 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 >When the temperature threshold T is reached, the control methods include:

[0014] Reduce the fan speed while maintaining the compressor's current operating frequency.

[0015] Furthermore, when the actual noise P of the fan... 风机 > Noise threshold P1, actual compressor noise P 压缩机 > Noise threshold P2;

[0016] The indoor unit operates in cooling mode, with the evaporator temperature T. 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 >When the temperature threshold T is reached, the control methods include:

[0017] Reduce the fan speed and the compressor operating frequency.

[0018] Furthermore, the method for constructing the noise threshold P1 corresponding to the target rotational speed of the wind turbine includes: constructing the wind turbine noise correction value ΔP. 风机 ; Obtain the noise value P corresponding to the target speed of the fan.10 The noise threshold P1 of the fan = noise value P 10 +Noise correction value △P 风机 .

[0019] Furthermore, the method for constructing the noise threshold P2 corresponding to the target operating frequency of the compressor includes: constructing the noise correction value ΔP of the compressor. 压缩机 ; Obtain the noise value P corresponding to the target operating frequency of the compressor. 20 The noise threshold P2 of the compressor = the noise value P 20 +Noise correction value △P 压缩机 .

[0020] According to another aspect of the present invention, an air conditioner is provided, applicable to the above-described air conditioner control method. The air conditioner includes: an outdoor unit, in which an axial flow fan and a compressor assembly are disposed; a first monitoring module disposed in the outdoor unit and opposite to the axial flow fan, for monitoring the noise of the axial flow fan; a second monitoring module disposed on the outdoor unit and opposite to the compressor assembly, for monitoring the noise of the compressor assembly; and a control module signal-connected to the first monitoring module, the second monitoring module, the axial flow fan, and the compressor assembly, respectively, so that the control module controls the operation and rotation of the axial flow fan according to the monitoring signal of the first monitoring module, and controls the operating frequency of the compressor assembly according to the monitoring signal of the second monitoring module.

[0021] Furthermore, the outdoor unit includes an air outlet grille, an axial flow fan is disposed opposite to the air outlet grille, and a first monitoring module is disposed in the middle of the air outlet grille; and / or, the outdoor unit includes a side panel, the side panel is disposed opposite to the compressor assembly, and a second monitoring module is disposed on the side panel.

[0022] Applying the technical solution of this invention, according to the air conditioner control method provided in this application, after the air conditioning system is turned on, it first acquires the current target operating parameters, including the target speed of the fan and the target operating frequency of the compressor. These parameters are adjusted according to the user's settings and the air conditioner's operating mode (such as cooling or heating). Based on the acquired target fan speed and target compressor operating frequency, the system uses stored historical data and algorithm models to construct the expected noise thresholds P1 and P2 for the fan and compressor under the corresponding operating conditions.

[0023] The actual noise level of the fan (P) was collected. 风机 The noise level is compared with the constructed noise threshold P1, while the actual compressor noise P is also compared. 压缩机 Compare with the noise threshold P2. If P... 风机 Less than or equal to P1, and P 压缩机 If P2 is lower than or equal to P2, it indicates that the noise level under the current operating parameters is acceptable; if P 风机If the noise level exceeds P1, it indicates abnormal fan noise; the system can be optimized by adjusting the fan speed. If P... 压缩机 If the noise level exceeds P2, it indicates abnormal compressor noise. The system can be optimized by adjusting the compressor operating frequency.

[0024] By independently monitoring the noise of the fan and compressor, this method can accurately identify the noise source, avoiding the blind adjustments caused by unclear noise sources in traditional control methods. The constructed noise threshold is dynamic and adjusts according to the current operating parameters, enabling the control method to respond in real time to fluctuations in ambient noise and ensuring optimal noise control performance. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0026] Figure 1 A flowchart illustrating an embodiment of the air conditioner control method according to the present invention is shown. Figure 1 ;

[0027] Figure 2 A flowchart illustrating an embodiment of the air conditioner control method according to the present invention is shown. Figure 2 ;

[0028] Figure 3 A first-view structural schematic diagram of the outdoor unit of an air conditioner according to the present invention is shown;

[0029] Figure 4 A second-view structural schematic diagram of the outdoor unit of an air conditioner according to the present invention is shown;

[0030] Figure 5 A schematic diagram of the structure of a first monitoring module or a second monitoring module in an air conditioner according to the present invention is shown.

[0031] The above figures include the following reference numerals:

[0032] 100. Outdoor unit; 110. Air outlet grille; 120. Side panel;

[0033] 200. First monitoring module; 300. Second monitoring module;

[0034] 210. Signal transmission unit; 220. Microphone; 230. Data storage and analysis unit. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] As mentioned in the background section, the noise level of air conditioners significantly affects user comfort. During operation, in addition to the indoor unit, noise generated by the outdoor unit can also be transmitted to the indoor unit through walls or brackets. Existing technologies largely rely on preset noise thresholds and fixed noise optimization programs to control air conditioner noise. This involves recording and updating historical decibel values ​​of the air conditioner in a non-noise state to optimize noise; or using sensors installed on the top or base of the air conditioner to acquire ambient noise and the air conditioner's own noise, then selecting a silent mode based on a preset correlation. However, these methods monitor the overall operating decibel level of the unit, making it impossible to accurately identify the noise source when noise occurs, thus hindering targeted adjustments to the air conditioner. Therefore, to address these technical problems, the air conditioner control method provided in this application, after the air conditioner is turned on, constructs a noise threshold P1 corresponding to the target fan speed and a noise threshold P2 corresponding to the target compressor operating frequency in the system based on user-set parameters, including acquiring the target fan speed and compressor operating frequency in the outdoor unit; and acquires the actual fan noise P... 风机 And the actual noise of the compressor P 压缩机 The actual noise level of the fan (P) 风机 Compare with the noise threshold P1, and simultaneously compare the actual compressor noise P 压缩机 The noise level is compared with a noise threshold P2; based on the comparison result, the outdoor unit is controlled to operate at the current operating parameters; or, the fan speed and / or compressor operating frequency are adjusted. Traditional air conditioning noise control methods often only monitor the overall noise level of the entire unit, but cannot accurately distinguish whether the noise is caused by the fan or the compressor. This application, by setting up dedicated noise analysis modules at different key locations (such as the fan side and the compressor side) of the air conditioner outdoor unit, can independently collect and analyze the noise data of these two parts, thereby achieving accurate identification of the noise source, realizing effective noise management during air conditioning operation, and better meeting the needs of users in different environments and at different times, providing a quieter and more comfortable user experience.

[0037] Please refer to Figure 1 This application provides an air conditioner control method, including: acquiring outdoor unit operating parameters, the outdoor unit operating parameters including: a target fan speed and a target compressor operating frequency; constructing a noise threshold P1 corresponding to the target fan speed and a noise threshold P2 corresponding to the target compressor operating frequency; acquiring the actual fan noise P and the actual fan and compressor noise P... 压缩机 The actual noise level of the fan (P) 风机 Compare with the noise threshold P1, and simultaneously compare the actual compressor noise P压缩机 Compare with the noise threshold P2; based on the comparison result, control the outdoor unit to operate at the current operating parameters; or, adjust the fan speed and / or the compressor operating frequency.

[0038] According to the air conditioner control method provided in this application, after the air conditioning system is turned on, it first acquires the current target operating parameters, including the target speed of the fan and the target operating frequency of the compressor. These parameters are adjusted according to the user's settings and the air conditioner's operating mode (such as cooling or heating). Based on the acquired target fan speed and target compressor operating frequency, the system constructs the expected noise thresholds P1 and P2 for the fan and compressor under the corresponding operating conditions.

[0039] The actual noise level of the fan (P) was collected. 风机 The noise level is compared with the constructed noise threshold P1, while the actual compressor noise P is also compared. 压缩机 Compare with the noise threshold P2. If P... 风机 Less than or equal to P1, and P 压缩机 If P2 is lower than or equal to P2, it indicates that the noise level under the current operating parameters is acceptable; if P 风机 If the noise level exceeds P1, it indicates abnormal fan noise; the system can be optimized by adjusting the fan speed. If P... 压缩机 If the noise level exceeds P2, it indicates abnormal compressor noise. The system can be optimized by adjusting the compressor operating frequency.

[0040] By independently monitoring the noise of the fan and compressor, this method can accurately identify the noise source, avoiding the blind adjustments caused by unclear noise sources in traditional control methods. The constructed noise threshold is dynamic and adjusts according to the current operating parameters, enabling the control method to respond in real time to fluctuations in ambient noise and ensuring optimal noise control performance.

[0041] Specifically, when the actual noise P of the fan 风机 <Noise threshold P1, while the actual compressor noise P 压缩机 When the noise threshold P2 is less than 2, control the outdoor unit to operate at the current operating parameters.

[0042] If the monitoring results show that the actual noise level of the fan is P 风机 The noise level is lower than its corresponding noise threshold P1, while the actual compressor noise P 压缩机 This noise level is also below its corresponding noise threshold P2, meaning that the noise generated by the current outdoor unit's operating parameters (i.e., fan speed and compressor frequency) is within an acceptable range and meets the preset quiet standard. At this time, the system will not adjust the outdoor unit's operating parameters, and the air conditioner will continue to operate in its current state without requiring additional noise control.

[0043] In the embodiments provided in this application, before adjusting the fan speed and / or the compressor operating frequency, the control method further includes: obtaining the indoor unit evaporator temperature T. 蒸 Set the indoor unit evaporator temperature T 蒸 Compare with the temperature threshold T; obtain the operating mode of the indoor unit, including: cooling mode and heating mode; adjust the fan speed and / or compressor operating frequency according to the comparison results and the operating mode.

[0044] The system continuously acquires the temperature T of the indoor unit's evaporator through a built-in temperature sensor. 蒸 The system then compares this temperature value with a preset temperature threshold T. The preset temperature threshold T should be determined based on the user-set temperature, the current indoor temperature, and the air conditioner's operating mode (cooling or heating). The system identifies the current operating mode, i.e., whether the air conditioner is in cooling or heating mode. The evaporator temperature T varies depending on the operating mode. 蒸 The relationship with noise control also differs, requiring different strategies.

[0045] In cooling mode:

[0046] When the evaporator temperature T 蒸 When the temperature is lower than the user-set temperature plus a preset temperature difference T0 (i.e., T... 蒸 ≤T 设 +T0) indicates that the current cooling effect has met the requirements. At this time, the fan speed and / or compressor frequency can be reduced to reduce noise.

[0047] When the evaporator temperature T 蒸 When the temperature is higher than the user-set temperature plus a preset temperature difference T0 (i.e., T... 蒸 >T 设 +T0) indicates that cooling needs to be strengthened. At this time, the fan speed and / or compressor frequency should be increased, but at the same time, appropriate adjustments should be made according to the noise monitoring results to avoid excessive noise.

[0048] In heating mode:

[0049] When the evaporator temperature T 蒸 When the temperature is higher than the user-set temperature minus a preset temperature difference T0 (i.e., T... 蒸 ≥T 设 -T0) indicates that the current heating effect meets the requirements, and the fan speed and / or compressor frequency can be reduced to reduce noise.

[0050] When the evaporator temperature T 蒸 When the temperature is lower than the user-set temperature minus a preset temperature difference T0 (i.e., T... 蒸 <T 设-T0), the fan speed and / or compressor frequency should be increased to enhance heating, and adjustments should also be made based on noise monitoring results.

[0051] Specifically, when the actual noise P of the fan 风机 <Noise threshold P1, actual compressor noise P 压缩机 > Noise threshold P2; Indoor unit operating in cooling mode, evaporator temperature T 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 When the temperature threshold T is reached, the control methods include: reducing the operating frequency of the compressor and maintaining the current speed of the fan.

[0052] In the embodiments provided in this application, when the noise analysis module of the air conditioning system detects the actual fan noise P 风机 It did not exceed its noise threshold P1, while the actual noise of the compressor P 压缩机 When the noise level exceeds the threshold P2, the system will further check the current operating mode (cooling or heating) of the indoor unit and the evaporator temperature T. 蒸 Whether specific conditions are met.

[0053] The specific steps are as follows:

[0054] Temperature mode determination: If the air conditioner is in cooling mode and the evaporator temperature T 蒸 Temperatures below or equal to a preset temperature threshold T (i.e., T0) 蒸 ≤T), which usually means that the current cooling effect is sufficient, and the system can prioritize reducing noise. Alternatively, if the air conditioner is operating in heating mode and the evaporator temperature T... 蒸 Temperatures exceeding the preset threshold T (i.e., T) 蒸 >T), which means that the current heating status does not need to be further enhanced, and noise control can be given priority.

[0055] Compressor frequency reduction: Once the evaporator temperature is confirmed to be within the above range, the system will execute a command to reduce the compressor's operating frequency. This is because reducing the compressor's operating frequency directly reduces compressor-side noise, while maintaining a constant fan speed ensures that the air conditioning's airflow and cooling / heating efficiency are not significantly affected.

[0056] Fan speed maintenance: In this case, the fan will maintain its current speed because the noise it produces is not beyond acceptable limits. By maintaining the fan speed, the air conditioning system can continue to effectively circulate air to maintain a comfortable indoor temperature.

[0057] Subsequent monitoring and adjustments: The system will continuously monitor the evaporator temperature T. 蒸Regarding noise levels, if the noise still exceeds the standard after adjusting the compressor frequency or the evaporator temperature no longer meets the initial conditions, the system will reassess and may take further adjustment measures.

[0058] By setting separate noise thresholds for the fan and compressor, and implementing targeted control based on actual noise levels exceeding these thresholds, this method effectively identifies and controls the main sources of noise. Without sacrificing temperature control performance, it effectively reduces compressor noise, ensuring users enjoy the comfortable temperature provided by the air conditioner without being disturbed by high compressor noise, thus improving the comfort of the living or working environment.

[0059] When the actual noise of the fan P 风机 > Noise threshold P1, actual compressor noise P 压缩机 Noise threshold P2; Indoor unit operating in cooling mode, evaporator temperature T 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 When the temperature threshold T is reached, the control methods include: reducing the fan speed and keeping the compressor at its current operating frequency.

[0060] In the air conditioner control method of this application, when the actual fan noise P is monitored... 风机 It exceeded its corresponding noise threshold P1, while the actual noise of the compressor P 压缩机 When kept below the noise threshold P2, the system will adopt the following control strategy:

[0061] Cooling mode operation: If the indoor unit is currently operating in cooling mode and the evaporator temperature T 蒸 The temperature has reached the preset threshold T or lower (i.e., T). 蒸 If the temperature is ≤ temperature threshold T, it indicates that the current indoor temperature has met or exceeded the user's comfort requirements. The fan speed can be appropriately reduced to reduce the noise level on the fan side without changing the operating frequency of the compressor, as the noise level on the compressor side is still acceptable.

[0062] Heating mode operation: In heating mode, if the evaporator temperature T 蒸 Temperatures above a preset threshold T (i.e., T) 蒸 If the temperature threshold (T) is reached, the fan speed can also be reduced because the indoor temperature may have already reached the user's set comfortable temperature. There is no need to increase the air volume to speed up the heating process, and the noise level on the compressor side is also within an acceptable range.

[0063] By monitoring the noise of the fan and compressor separately, this method can accurately identify the source of the noise and make targeted optimizations, avoiding unnecessary system adjustments.

[0064] In cooling mode, the evaporator temperature T 蒸 When the set threshold is reached, or when the evaporator temperature T is in heating mode 蒸 When the set threshold is exceeded, reducing the fan speed will not significantly affect the indoor temperature, ensuring that users can still enjoy a comfortable temperature in a quiet environment.

[0065] When the actual noise of the fan P 风机 > Noise threshold P1, actual compressor noise P 压缩机 > Noise threshold P2; Indoor unit operating in cooling mode, evaporator temperature T 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 When the temperature threshold T is reached, the control methods include: reducing the fan speed and simultaneously reducing the compressor operating frequency.

[0066] When the system monitors the actual noise P of the fan 风机 The noise level exceeds the preset noise threshold P1, and the actual compressor noise P... 压缩机 When the noise level exceeds its corresponding noise threshold P2, it indicates that the noise level caused by the current combination of fan and compressor operating parameters exceeds the acceptable range. In this case, the air conditioner's operating mode and evaporator temperature T... 蒸 This will be used to guide the next steps in noise control strategy. The specific implementation steps are as follows:

[0067] Indoor unit operating mode recognition: The system first confirms the current operating mode of the indoor unit, i.e. whether it is in cooling mode or heating mode.

[0068] Evaporator temperature determination:

[0069] If the air conditioner is operating in cooling mode and the evaporator temperature T 蒸 Less than or equal to the temperature threshold T (i.e., T 蒸 If the temperature is ≤T), the system determines that the current cooling effect has met or is close to meeting the user's set requirements. At this time, reducing the fan speed and compressor operating frequency will not have a significant impact on the cooling effect and can effectively reduce noise.

[0070] If the air conditioner is operating in heating mode and the evaporator temperature T 蒸 Above the temperature threshold T (i.e., T) 蒸 A reading >T indicates that the current heating effect exceeds the user's needs or the ambient temperature range. Reducing the fan speed and compressor operating frequency will not significantly reduce the heating effect and will also help reduce noise.

[0071] Parameter Adjustment: Based on the above assessment, the system automatically reduces the fan speed and compressor operating frequency. This operation is achieved by adjusting the drive circuits of the fan and compressor through the air conditioner's control module.

[0072] Continuous monitoring and feedback: After parameter adjustments, the system will continuously monitor the actual fan noise P. 风机 And the actual noise of the compressor P 压缩机 The level, and the evaporator temperature T 蒸 This is to confirm whether the noise is effectively controlled, while ensuring that the temperature regulation effect is not excessively affected.

[0073] Abnormal situation handling: If the noise level still cannot reach the preset threshold after multiple adjustments, the system will issue an abnormal noise prompt to the user and provide abnormal status diagnosis of the fan or compressor, so that after-sales maintenance personnel can quickly locate and resolve the problem.

[0074] To ensure the indoor unit evaporator temperature T 蒸 Noise control is implemented when the temperature reaches or approaches the user-defined temperature threshold T, ensuring that the air conditioner's cooling or heating performance is not excessively sacrificed due to noise reduction, thus maintaining indoor comfort. Low noise and precise temperature control are key factors in enhancing the air conditioner user experience. This method significantly reduces noise while ensuring effective temperature regulation, thereby increasing user satisfaction.

[0075] The method for constructing the noise threshold P1 corresponding to the target speed of the wind turbine includes: constructing the wind turbine noise correction value ΔP 风机 ; Obtain the noise value P corresponding to the target speed of the fan. 10 The noise threshold P1 of the fan = noise value P 10 +Noise correction value △P 风机 .

[0076] Considering the impact of environmental factors (such as external noise, installation conditions, etc.) on fan noise, this application proposes to obtain an additional noise correction value ΔP. 风机 This adjusts the preset noise threshold. This noise correction value can be dynamically calculated based on the current ambient noise level to ensure that the noise threshold P1 is set more reasonably and adapts to the actual operating environment.

[0077] The noise value P corresponding to the target speed of the wind turbine. 10 The noise correction value ΔP calculated based on the current ambient noise level. 风机 The summation yields the fan noise threshold P1. This threshold reflects the maximum acceptable noise level of the fan under specific operating parameters and environmental conditions.

[0078] During air conditioner operation, the noise analysis module continuously monitors the actual noise P generated by the fan. 风机 And compare it with the noise threshold P1. If P 风机 A noise level below P1 indicates that the fan is operating within an acceptable noise range; if P...风机 If the noise level exceeds P1, the system will adjust the fan speed according to the set control strategy to reduce the noise to below the threshold.

[0079] Traditional noise control methods may preset a fixed low noise threshold, leading to excessive adjustment of fan speed under certain environmental conditions, which can affect the cooling or heating efficiency of the air conditioner. The method in this application avoids this over-control by setting a reasonable noise threshold P1, ensuring that the performance of the air conditioner is not significantly affected while reducing noise.

[0080] The method for constructing the noise threshold P2 corresponding to the target operating frequency of the compressor includes: constructing the noise correction value ΔP of the compressor. 压缩机 ; Obtain the noise value P corresponding to the target operating frequency of the compressor. 20 The noise threshold P2 of the compressor = the noise value P 20 +Noise correction value △P 压缩机 .

[0081] After the air conditioner is turned on, the system obtains the target operating frequency of the compressor based on the user-set operating parameters. Then, the system can find the expected noise value P corresponding to the current target operating frequency. 20 This noise value P 20 It is the average noise level of the compressor at this frequency, obtained through statistical analysis based on a large amount of experimental and operational data.

[0082] The noise value P corresponding to the compressor's target operating frequency 20 With the constructed noise correction value △P 压缩机 Adding them together, we get the noise threshold P2. That is: P2 = P 20 +△P 压缩机 This threshold is the actual acceptable noise level adjusted based on the current operating frequency, providing a reference standard for subsequent noise monitoring and control.

[0083] By constructing the noise correction value △P 压缩机 This method can dynamically adjust the noise threshold P2 according to different operating environments, making it more consistent with actual usage scenarios and improving the noise control effect of air conditioners in various environments. The expected noise value P2 corresponding to the compressor's target operating frequency is... 20 With correction value △P 压缩机 By combining these methods, the noise threshold P2 is set more accurately, avoiding control errors caused by setting the threshold too high or too low.

[0084] Among them, this application constructs the correction value △P 风机 and correction value △P 压缩机 The methods include: obtaining the ambient noise level P of the outdoor unit after the air conditioner is turned on. 环Then, the environmental noise value P 环 Noise value P corresponding to the target speed of the fan 10 Superimpose the values ​​to obtain the ambient noise value P. 环 Noise value P corresponding to the compressor's target operating frequency 20 The noise values ​​are superimposed separately to construct a noise baseline that more closely reflects the actual operating environment. The superimposed noise value is then compared with the noise limit thresholds for the fan and compressor established in the system, and the difference is the correction value ΔP. 风机 and correction value △P 压缩机 During air conditioner operation, the correction value △P 风机 and correction value △P 压缩机 The noise level is dynamically adjusted by varying the fan speed and compressor frequency.

[0085] like Figures 2 to 4 As shown, this application also provides an air conditioner applicable to the above-described air conditioner control method. The air conditioner includes: an outdoor unit 100, in which an axial flow fan and a compressor assembly are disposed; a first monitoring module 200 disposed in the outdoor unit 100 and opposite to the axial flow fan to monitor the noise of the axial flow fan; a second monitoring module 300 disposed on the outdoor unit 100 and opposite to the compressor assembly to monitor the noise of the compressor assembly; and a control module signal-connected to the first monitoring module 200, the second monitoring module 300, the axial flow fan, and the compressor assembly, respectively, so that the control module controls the operation and rotation of the axial flow fan according to the monitoring signal of the first monitoring module 200, and controls the operating frequency of the compressor assembly according to the monitoring signal of the second monitoring module 300.

[0086] The first monitoring module 200 is located inside the outdoor unit 100, opposite to the axial flow fan. This module can monitor the noise generated by the axial flow fan in real time and transmit the data to the control module for analysis.

[0087] The second monitoring module 300 is installed on the outdoor unit 100, opposite the compressor assembly. It can accurately measure the noise level of the compressor during operation and feed the data back to the control module.

[0088] The control module dynamically adjusts the speed of the axial fan based on the noise monitoring signal from the first monitoring module 200 to ensure that the fan noise remains within a safe and comfortable range. Based on the noise monitoring signal from the second monitoring module 300, the control module intelligently adjusts the operating frequency of the compressor to prevent excessive noise levels on the compressor side.

[0089] During implementation, the control module will comprehensively consider the noise data from the two monitoring modules, as well as the indoor unit evaporator temperature and the user-set temperature mode. By coordinating the operating parameters of the axial fan and compressor, it will find the optimal noise control state while meeting the temperature regulation requirements.

[0090] By configuring noise monitoring modules on both sides of the fan and compressor, the source of noise can be accurately identified, providing basic data support for noise control and avoiding the ambiguity in noise source treatment in traditional methods. The first monitoring module 200 is specifically for the noise of the axial flow fan, and the second monitoring module 300 focuses on the noise of the compressor components, enabling the control module to independently and precisely adjust the operating status of each component, achieving refined noise management.

[0091] The outdoor unit 100 includes an air outlet grille 110, an axial flow fan is disposed opposite to the air outlet grille 110, and a first monitoring module 200 is disposed in the middle of the air outlet grille 110; and / or, the outdoor unit 100 includes a side panel 120, the side panel 120 is disposed opposite to the compressor assembly, and a second monitoring module 300 is disposed on the side panel 120.

[0092] The first monitoring module 200 is carefully positioned in the center of the air outlet grille 110. This location was chosen based on two considerations: the air outlet grille 110 is a critical location for air conditioning air outlet and is directly related to the axial flow fan; therefore, monitoring in this area can obtain the most direct fan noise data. The central position avoids airflow interference from the grille edge, ensuring the accuracy of the monitoring results and preventing the influence of non-uniformity in the flow field on the noise data.

[0093] The second monitoring module 300 is mounted on the side plate 120 opposite the compressor assembly. The side plate 120 is close to the compressor and can capture the noise generated by the compressor and its related pipes and components, ensuring that the monitoring results are correlated with the compressor noise. Choosing to mount the monitoring module on the side plate 120 allows for a more compact structure, does not occupy additional internal space, and facilitates installation and maintenance.

[0094] Specifically, the first monitoring module 200 and / or the second monitoring module 300 include: a signal transmission unit 210, a microphone 220, and a data storage and analysis unit 230.

[0095] Microphone 220 is designed with high sensitivity and a wide frequency response range, effectively capturing various noise signals generated during air conditioner operation, whether it's high-frequency noise from the axial fan or low-frequency noise from the compressor. For the first monitoring module 200, microphone 220 is installed in the center of the air outlet grille 110 to ensure accurate monitoring of noise from the axial fan; while for the second monitoring module 300, microphone 220 is installed on the side panel 120, close to the compressor assembly, to accurately collect noise information from the compressor and its related components. Data storage and analysis unit 230 integrates noise data storage, analysis, and control strategy formulation functions. Its design enables rapid processing of noise information received from microphone 220, real-time analysis, and the formulation of corresponding noise control strategies based on the analysis results. Data storage and analysis unit 230 is equipped with advanced data analysis algorithms that can distinguish between normal and abnormal noise. Based on environmental noise, historical data, and current operating parameters, it dynamically calculates noise correction values ​​for the fan and compressor, thereby adjusting noise thresholds P1 and P2.

[0096] The signal transmission unit 210 serves as a communication bridge between the module and the air conditioning control system. It is responsible for converting the audio signals collected by the microphone 220 into digital signals and transmitting them to the data storage and analysis unit 230 for processing. It can also transmit control commands from the data storage and analysis unit 230 to the control module to control the fan speed and compressor frequency.

[0097] The noise control method in this application mainly targets the outdoor unit of an air conditioner. The air conditioning control device primarily includes a noise analysis module on the compressor side and a noise analysis module on the fan side. Its assembly diagram within the air conditioner unit is shown below. Figure 2 and Figure 3 As shown. Figure 2 A schematic diagram of the assembly of the fan-side noise analysis module is given. The fan-side noise analysis module is installed at the center of the grid structure, which can both reduce the impact of the analysis module on the fan flow field and enable the fan-side noise module to monitor and analyze the fan noise. Figure 3 This is a schematic diagram of the compressor-side noise analysis module assembly. The compressor-side noise analysis module is installed in the middle of the right side panel, which mainly monitors and analyzes the noise generated by the compressor piping components.

[0098] Noise analysis module such as Figure 4 As shown, it mainly includes a noise sensor microphone, a data storage and analysis module, and a signal transmission module. The microphone is used to acquire environmental noise in real time, including the noise during actual operation of the whole machine. The data storage and analysis module is used to save the currently analyzed environmental noise and analyze the real-time noise during the operation of the whole machine. The signal transmission module is used to receive or send relevant instructions to the whole machine system.

[0099] The control process in this application is as follows: Figure 1 As shown, after the user sends the power-on command, the noise sensor acquires the current ambient noise value P. 环 Microphones on both the fan and compressor sides acquire ambient noise values ​​and store them in the data storage and analysis module. Furthermore, when the outdoor unit starts running, the system acquires the target speed and target compressor operating frequency under the current conditions. Based on the current ambient noise and the target speed and frequency, the system then determines the fan noise correction value and the compressor noise correction value, respectively, as ΔP. 风机 △P 压缩机 Furthermore, once the entire machine is running stably, the noise sensor acquires the current fan noise P. 风机 and compressor-side noise P 压缩机 And noise data analysis was performed.

[0100] When P 风机 <P 10 +△P 风机 And P 压缩机 <P 20 +△P 压缩机 When the noise level of the entire machine meets the requirements, it can operate normally under the current condition. When the fan speed and compressor frequency change, the system re-determines the fan noise correction value and compressor noise correction value based on the current ambient noise and the target speed and frequency for further analysis.

[0101] When P 风机 <P 10 +△P 风机 And P 压缩机 >P 20 +△P 压缩机 At this time, the abnormal noise was mainly caused by noise from the right compressor side. The system further compared the current user-set temperature with the evaporator temperature T under cooling conditions. 蒸 When the temperature is less than or equal to the user-set temperature T plus the preset temperature difference T0, the compressor frequency can be reduced, and the compressor noise correction value can be re-determined based on the current compressor frequency for further analysis; if the evaporator temperature T... 蒸 When the temperature difference T is greater than the user-set temperature T and the machine's preset temperature difference T0, the compressor frequency needs to be increased to meet the user's cooling requirements. Simultaneously, further analysis is needed to determine the compressor-side noise correction value based on the current compressor frequency. Under heating conditions, when the evaporator temperature T... 蒸 When the temperature is greater than or equal to the user-set temperature T minus the preset temperature difference T0, the compressor frequency can be reduced, and the compressor noise correction value can be re-determined based on the current compressor frequency for further analysis; if the evaporator temperature T... 蒸When the temperature difference is less than the user-set temperature T0 minus the preset temperature difference T0, the compressor frequency needs to be increased to meet the user's heating requirements. At the same time, further analysis should be conducted based on the current compressor frequency to determine the compressor noise correction value.

[0102] When P 风机 >P 10 +△P 风机 And P 压缩机 <P 20 +△P 压缩机 At this time, the abnormal noise was mainly caused by fan noise. The system further compared the current user-set temperature with the evaporator temperature T under cooling conditions. 蒸 When the temperature is less than or equal to the user-set temperature T0 plus the preset temperature difference T0, the fan speed can be reduced, and the fan-side noise correction value can be re-determined based on the current fan speed for further analysis; if the evaporator temperature T0 蒸 When the temperature difference T is greater than the user-set temperature T and the machine's preset temperature difference T0, the fan speed needs to be increased to meet the user's cooling requirements. Simultaneously, further analysis is needed to determine the fan-side noise correction value based on the current fan speed. Under heating conditions, when the evaporator temperature T... 蒸 When the temperature is greater than or equal to the user-set temperature T0 minus the preset temperature difference T0, the fan speed can be reduced, and the compressor-side noise correction value can be re-determined based on the current fan speed for further analysis; if the evaporator temperature T0 蒸 When the temperature difference is less than the user-set temperature T0 minus the preset temperature difference T0, the fan speed needs to be increased to meet the user's heating requirements. At the same time, the fan noise correction value should be determined based on the current fan speed for further analysis.

[0103] When P 风机 >P 10 +△P 风机 And P 压缩机 >P 20 +△P 压缩机 At this time, both the fan-side noise and compressor-side noise are abnormal. The system further compares the current user-set temperature with the evaporator temperature T under cooling conditions. 蒸 When the temperature is less than or equal to the user-set temperature T plus the preset temperature difference T0, the fan speed and compressor frequency can be reduced, and the noise correction value can be re-determined based on the current fan speed and compressor frequency for further analysis; if the evaporator temperature T 蒸 When the temperature difference exceeds the user-set temperature T0 and the preset temperature difference on the unit is greater than the user-set temperature T0, the fan speed and compressor frequency need to be increased to meet the user's cooling requirements. Simultaneously, further analysis is needed to determine the noise correction value based on the current fan speed and compressor frequency. Under heating conditions, when the evaporator temperature T0... 蒸When the temperature is greater than or equal to the user-set temperature T0 minus the preset temperature difference T0, the fan speed and compressor frequency can be reduced. Further analysis can then be performed to re-determine the compressor-side noise correction value based on the current fan speed and compressor frequency. If the evaporator temperature T0... 蒸 When the temperature difference is less than the user-set temperature T0 minus the preset temperature difference T0, the fan speed and compressor frequency need to be increased to meet the user's heating requirements. At the same time, further analysis should be conducted based on the current fan speed to determine the noise correction value.

[0104] If the optimal compressor operating frequency or fan speed cannot be obtained after multiple cycles of the current prototype status, the system will issue a noise abnormality alert to the user, confirm whether the abnormality is on the compressor side or the fan side based on the noise analysis module, and provide after-sales maintenance personnel with directions for problem solving.

[0105] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0106] According to the air conditioner control method provided in this application, after the air conditioning system is turned on, it first acquires the current target operating parameters, including the target speed of the fan and the target operating frequency of the compressor. These parameters are adjusted according to the user's settings and the air conditioner's operating mode (such as cooling or heating). Based on the acquired target fan speed and target compressor operating frequency, the system uses stored historical data and algorithm models to construct the expected noise thresholds P1 and P2 for the fan and compressor under the corresponding operating conditions.

[0107] The actual noise level of the fan (P) was collected. 风机 The noise level is compared with the constructed noise threshold P1, while the actual compressor noise P is also compared. 压缩机 Compare with the noise threshold P2. If P... 风机 Less than or equal to P1, and P 压缩机 If P2 is lower than or equal to P2, it indicates that the noise level under the current operating parameters is acceptable; if P 风机 If the noise level exceeds P1, it indicates abnormal fan noise; the system can be optimized by adjusting the fan speed. If P... 压缩机 If the noise level exceeds P2, it indicates abnormal compressor noise. The system can be optimized by adjusting the compressor operating frequency.

[0108] By independently monitoring the noise of the fan and compressor, this method can accurately identify the noise source, avoiding the blind adjustments caused by unclear noise sources in traditional control methods. The constructed noise threshold is dynamic and adjusts according to the current operating parameters, enabling the control method to respond in real time to fluctuations in ambient noise and ensuring optimal noise control performance.

[0109] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An air conditioner control method, characterized in that, include: Obtain outdoor unit operating parameters, including: target fan speed and target compressor operating frequency; Construct a noise threshold P1 corresponding to the target rotational speed of the fan and a noise threshold P2 corresponding to the target operating frequency of the compressor; Obtain the actual noise P of the fan 风机 And the actual noise of the compressor P 压缩机 ; The actual noise P of the fan 风机 The noise level is compared with the noise threshold P1, and the actual noise level of the compressor P is also compared. 压缩机 Compare with the noise threshold P2; Based on the comparison results, control the outdoor unit to operate with the current operating parameters; or adjust the fan speed and / or the compressor operating frequency.

2. The air conditioner control method according to claim 1, characterized in that, When the actual noise P of the fan 风机 <Noise threshold P1, while the actual noise of the compressor P 压缩机 When the noise threshold P2 is less than 2; Control the outdoor unit to operate at the current operating parameters.

3. The air conditioner control method according to claim 1, characterized in that, Before adjusting the fan speed and / or the compressor operating frequency, the control method further includes: Obtain the indoor unit evaporator temperature T 蒸 Set the indoor unit evaporator temperature T 蒸 Compare with the temperature threshold T; The operating mode of the indoor unit is obtained, including: cooling mode and heating mode; Based on the comparison results and the operating mode, adjust the fan speed and / or the compressor operating frequency.

4. The air conditioner control method according to claim 3, characterized in that, When the actual noise P of the fan 风机 <Noise threshold P1, the actual noise P of the compressor 压缩机 > Noise threshold P2; The indoor unit operates in cooling mode, and the evaporator temperature T 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 When the temperature threshold T is reached, the control method includes: The operating frequency of the compressor is reduced, while the fan maintains its current speed.

5. The air conditioner control method according to claim 3, characterized in that, When the actual noise P of the fan 风机 > Noise threshold P1, the actual noise level of the compressor P 压缩机 <Noise threshold P2; The indoor unit operates in cooling mode, and the evaporator temperature T 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 When the temperature threshold T is reached, the control method includes: The fan speed is reduced while the compressor maintains its current operating frequency.

6. The air conditioner control method according to claim 3, characterized in that, When the actual noise P of the fan 风机 > Noise threshold P1, the actual noise level of the compressor P 压缩机 > Noise threshold P2; The indoor unit operates in cooling mode, and the evaporator temperature T 蒸 When the temperature is ≤ temperature threshold T, or when the indoor unit is operating in heating mode, the evaporator temperature T 蒸 When the temperature threshold T is reached, the control method includes: Reduce the fan speed and simultaneously reduce the compressor operating frequency.

7. The air conditioner control method according to claim 1, characterized in that, The method for constructing the noise threshold P1 corresponding to the target rotational speed of the wind turbine includes: Construct the fan noise correction value △P 风机 ; Obtain the noise value P corresponding to the target rotational speed of the fan. 10 ; The noise threshold P1 of the fan is equal to the noise value P. 10 +Noise correction value △P 风机 .

8. The air conditioner control method according to claim 1, characterized in that, The method for constructing the noise threshold P2 corresponding to the target operating frequency of the compressor includes: Construct the noise correction value ΔP of the compressor. 压缩机 ; Obtain the noise value P corresponding to the target operating frequency of the compressor. 20 ; The noise threshold P2 of the compressor = noise value P 20 +Noise correction value △P 压缩机 .

9. An air conditioner, applicable to the air conditioner control method according to any one of claims 1 to 8, characterized in that, The air conditioner includes: An outdoor unit (100) is provided with an axial flow fan and a compressor assembly inside the outdoor unit (100); A first monitoring module (200) is installed inside the outdoor unit (100) and positioned opposite to the axial flow fan to monitor the noise of the axial flow fan; A second monitoring module (300) is installed on the outdoor unit (100). The second monitoring module (300) is positioned opposite to the compressor assembly to monitor the noise of the compressor assembly. The control module is signal-connected to the first monitoring module (200), the second monitoring module (300), the axial flow fan (100), and the compressor assembly, respectively, so that the control module controls the operation and rotation of the axial flow fan according to the monitoring signal of the first monitoring module (200), and the control module controls the operating frequency of the compressor assembly according to the monitoring signal of the second monitoring module (300).

10. The air conditioner according to claim 9, characterized in that, The outdoor unit (100) includes an air outlet grille (110), the axial flow fan is disposed opposite to the air outlet grille (110), and the first monitoring module (200) is disposed in the middle of the air outlet grille (110); and / or, The outdoor unit (100) includes a side panel (120) which is disposed opposite to the compressor assembly, and the second monitoring module (300) is disposed on the side panel (120).

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