Air conditioner silent control method, control device and air conditioner

Abstract

The present invention relates to a silent control method, control device, and air conditioner for an air conditioner. The silent control method comprises: obtaining an indoor ambient temperature and an indoor set temperature; determining an indoor heat exchange requirement and a corresponding noise threshold value based on the indoor ambient temperature and the indoor set temperature; obtaining a noise detection value, and controlling the operating state of an indoor unit based on the indoor heat exchange requirement, the noise threshold value, and the noise detection value. This method differs from conventional silent control methods for air conditioners in that it uses ambient temperature and noise parameters as a basis for determination, adjusts the speed of the indoor fan, the speed of the sweep motor, and the operating angle of the air guide plate, and through linked control ensures the air conditioner's heat exchange capacity while achieving silent sweeping.

Description

Technical Field

[0001] The present invention belongs to the field of air conditioners, and in particular relates to a silent control method and a control device for an air conditioner, and an air conditioner. Background Art

[0002] The main sources of air conditioner noise are compressor vibration, internal and external fan vibration, and air vibration noise generated by the sweeping motor and the air guide plate. These vibration noises can create a negative user experience. Among existing household air conditioners, split-type air conditioners occupy the majority of the market. Compared to outdoor unit noise, indoor unit noise has a more direct impact on user experience, making it imperative to address indoor unit noise.

[0003] To reduce noise when using indoor air conditioners, common solutions include adjusting the system's operating mode, reducing the air conditioner's fan speed, or adding sponge to the unit to reduce vibration and noise. These improvements often come at the expense of heat exchange efficiency in terms of control and performance. Summary of the Invention

[0004] In view of this, the present invention provides a silent control method, a control device and an air conditioner for an air conditioner, so as to solve the problem that the silent control of a traditional air conditioner generally sacrifices heat exchange efficiency to improve noise reduction efficiency.

[0005] To solve the above technical problems, the first aspect of the present invention provides a mute control method for an air conditioner indoor unit. The indoor unit is provided with a noise detection module for detecting the noise in the environment in which the indoor unit is located. The mute control method includes:

[0006] Obtain indoor ambient temperature, indoor set temperature and noise detection value;

[0007] Determine the indoor heat exchange demand and the corresponding noise threshold value based on the indoor ambient temperature and the indoor set temperature;

[0008] Obtain the noise detection value and control the working state of the indoor unit according to the indoor heat exchange demand, noise threshold and noise detection value.

[0009] Further optionally, determining the indoor heat exchange requirement and the corresponding noise threshold value according to the indoor ambient temperature and the indoor set temperature includes:

[0010] Calculate the temperature difference between the indoor ambient temperature and the indoor set temperature;

[0011] Obtain a noise threshold value corresponding to the temperature difference, wherein the higher the temperature difference, the higher the corresponding noise threshold value.

[0012] Further optionally, controlling the working state of the indoor unit according to the indoor heat exchange demand and the corresponding noise threshold value and noise detection value includes:

[0013] Determine the temperature range in which the difference between the indoor ambient temperature and the indoor set temperature lies;

[0014] In different temperature ranges, the indoor unit is controlled to operate in different working states, and the working state of the indoor unit is adjusted according to the noise detection value and the noise threshold value of the corresponding temperature range.

[0015] Further optionally, when the temperature difference is greater than or equal to a first preset value, controlling the indoor unit to operate in a different working state, and adjusting the working state of the indoor unit according to the noise detection value and the noise threshold value corresponding to the temperature range, including:

[0016] Comparing the noise detection value with the first noise threshold value;

[0017] When the noise detection value is greater than the first noise threshold value, the indoor fan is reduced to a first set number of revolutions above the existing speed, the air guide plate is controlled to sweep the air at a high angle, and the step of comparing the noise detection value with the first noise threshold value is entered.

[0018] Further optionally, when the noise detection value is less than or equal to the first noise threshold value, the indoor unit is maintained in the current operating state until the temperature difference is less than a first preset value;

[0019] Control the wind deflector to sweep the air at all angles.

[0020] Further optionally, when the temperature difference is less than a first preset value, controlling the indoor unit to operate in a different working state, and adjusting the working state of the indoor unit according to the noise detection value and the noise threshold value of the corresponding temperature range, including:

[0021] Control the indoor fan to operate at the second wind speed among multiple wind speeds, and control the sweeping motor to drive the air guide plate to sweep the air at its maximum operating speed to perform full-angle sweeping;

[0022] comparing the noise detection value with a second noise threshold value;

[0023] When the noise detection value is less than or equal to the second noise threshold value, the indoor unit maintains the current operating state;

[0024] When the noise detection value is greater than the second noise threshold value, the air sweeping motor adjustment mode is entered to adjust the speed of the air sweeping motor;

[0025] The second wind speed is lower than the first wind speed, and the second noise threshold value is lower than the first noise threshold value.

[0026] Further optionally, in the wind sweeping motor adjustment mode, the mute control method includes:

[0027] In each of the plurality of pre-divided wind sweep angle intervals, the noise detection value is compared with the second noise threshold value;

[0028] When the noise detection value is greater than the second noise threshold value, the second set speed is reduced above the existing wind sweeping motor speed;

[0029] When the noise detection value is less than or equal to the second noise threshold value, the air sweeping motor is kept at the current speed.

[0030] Further optionally, in the wind sweeping motor adjustment mode, the mute control method further includes:

[0031] The running time of the air sweeping motor adjustment mode is recorded, and when the running time is greater than or equal to the preset time, the air sweeping motor adjustment mode is exited.

[0032] Further optionally, after exiting the wind sweeping motor adjustment mode, the mute control method further includes:

[0033] comparing the noise detection value with a second noise threshold value;

[0034] When the noise detection value is greater than the second noise threshold value, the indoor fan is reduced to a third set speed above the existing speed;

[0035] When the noise detection value is less than or equal to the second noise threshold value, the indoor unit maintains the current operating state;

[0036] The third set number of revolutions is smaller than the first set number of revolutions.

[0037] Further optionally, the mute control method further includes:

[0038] A first noise threshold value set by a user is received, wherein a custom range of the first noise threshold value is related to a maximum noise value and a minimum noise value generated by the operation of the indoor unit.

[0039] Further optionally, the indoor fan is provided with a minimum wind speed and a maximum wind speed, and the silent control method further comprises:

[0040] When the air conditioner enters the noise reduction mode, the indoor fan is controlled to run at the highest wind speed, and the air guide plate is controlled to sweep air at all angles. The noise detection value at this time is obtained and used as the maximum noise value;

[0041] Control the indoor fan to run at the lowest wind speed, control the air guide plate to open to the maximum opening angle and then let it stand, obtain the noise detection value at this time, and use it as the minimum noise value;

[0042] Custom range of high noise threshold: greater than or equal to (N h +N l ) / 2 and less than or equal to N h , Nh Indicates the maximum noise value, N l Indicates the minimum noise value.

[0043] A second aspect of the present invention provides an air conditioner control device, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement any one of the methods of the first aspect.

[0044] A third aspect of the present invention provides an air conditioner, which adopts any method of the first aspect, or includes the control device of the second aspect.

[0045] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0046] The present invention newly adds a noise detection module to achieve effective noise collection, which is different from the "blind" noise reduction mode of traditional air conditioners.

[0047] The present invention is different from the traditional silent control method of the air conditioner. It uses the ambient temperature and noise parameters as the judgment basis to adjust the speed of the internal fan and the speed of the wind sweeping motor and the operating angle of the air guide plate. Through linkage control, it ensures the heat exchange capacity of the air conditioner and realizes silent wind sweeping. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0049] Figure 1 A schematic diagram of wind sweep angle detection according to an embodiment of the present invention is shown.

[0050] Figure 2 A schematic diagram of full-angle wind sweeping and high-angle wind sweeping according to an embodiment of the present invention is shown.

[0051] Figure 3 A flow chart of a method for controlling the sound level of an air conditioner according to an embodiment of the present invention is shown.

[0052] Figure 4 A flow chart of a method for controlling the sound level of an air conditioner according to an embodiment of the present invention is shown.

[0053] Figure 5 A schematic diagram of system interaction between a user and an air conditioner according to an embodiment of the present invention is shown.

[0054] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0056] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "in contact," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0057] In order to solve the problem that the noise reduction efficiency of a traditional air conditioner is generally improved at the expense of heat exchange efficiency in the silent control of the air conditioner, a first aspect of the present embodiment provides a silent control method for an air conditioner.

[0058] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0059] Combine Figure 1 The indoor unit is provided with a noise detection module for detecting the noise in the environment where the indoor unit is located. Optionally, the noise detection module adopts a microphone array. Figure 3 , the mute control method includes S1 to S3, where:

[0060] S1, obtain indoor ambient temperature and indoor set temperature;

[0061] S2, determining the indoor heat exchange demand and the corresponding noise threshold value based on the indoor ambient temperature and the indoor set temperature;

[0062] S3, obtaining a noise detection value, and controlling the working state of the indoor unit according to the indoor heat exchange demand, the noise threshold value, and the noise detection value.

[0063] The detection methods set in this embodiment are divided into two types, one is ambient temperature detection, and the other is noise detection. Ambient temperature detection is achieved through an ambient temperature sensor package, which is generally a standard feature of the air conditioner and does not increase costs; noise detection is achieved through a microphone array. The purpose of ambient temperature detection here is to detect the ambient temperature value and, together with the temperature value set by the user, determine the indoor heat exchange demand and noise demand. Noise detection can monitor the operating noise of the air conditioner in real time, and then link the indoor unit under certain control to ensure the heat exchange capacity of the air conditioner and achieve the purpose of silent air sweeping, which further reflects the efficiency and intelligence of the silent operation of the air conditioner, and can bring customers a better user experience.

[0064] Preferably, the air conditioner features Intelligent Noise Reduction Mode A. When the user selects Intelligent Noise Reduction Mode A, the microphone temporarily stops detecting noise. Instead, the ambient temperature sensor detects the ambient temperature and compares it with the user's set temperature to determine the indoor heat exchange requirement and the corresponding noise threshold. The noise detection module then monitors the operating noise of the indoor unit, obtaining and using the noise detection value to adjust the indoor unit's operating status.

[0065] Further optionally, step S2 includes S21 to S22, wherein:

[0066] S21, calculating the temperature difference between the indoor ambient temperature and the indoor set temperature;

[0067] S22: Obtain a noise threshold value corresponding to the temperature difference, wherein the higher the temperature difference, the higher the corresponding noise threshold value.

[0068] Specifically, the difference K between the ambient temperature and the user-set temperature is detected. The larger the difference K, the higher the indoor heat exchange requirement. A noise threshold is further set based on the temperature difference. A higher temperature difference corresponds to a higher noise threshold. Furthermore, multiple temperature difference intervals can be configured, with different noise thresholds corresponding to different temperature difference intervals. This means that within the maximum noise requirement, the air conditioner's heat exchange capacity is maximized, achieving a balance between the customer's needs for heat exchange efficiency and noise reduction within a limited space, thereby enhancing the user experience.

[0069] Further optionally, step S3 includes S31 to S32, wherein:

[0070] S31, determining the temperature range in which the temperature difference between the indoor ambient temperature and the indoor set temperature lies;

[0071] S32, controlling the indoor unit to operate in different working states in different temperature ranges, and adjusting the working state of the indoor unit according to the noise detection value and the noise threshold value of the corresponding temperature range.

[0072] Specifically, the temperature difference between the indoor ambient temperature and the indoor set temperature is divided into multiple temperature intervals. In different temperature intervals, the indoor unit is first controlled to operate in the corresponding working state to try to meet the indoor heat exchange requirements. Then the microphone sensor begins to intervene in the air-conditioning operation, and the air-conditioner noise is not allowed to exceed the noise threshold. If the noise threshold value is exceeded, the working state of the indoor unit is adjusted to meet the noise requirements.

[0073] Further optionally, when the temperature difference is greater than or equal to the first preset value, step S32 includes S321 to S323, wherein:

[0074] S321, controlling the indoor fan to operate at a first wind speed among multiple wind speeds, controlling the sweeping motor to operate at its maximum operational speed to drive the air guide plate to sweep the air at a high angle, wherein the first wind speed is preferably the highest wind speed of the indoor fan;

[0075] S322, comparing the noise detection value with the first noise threshold value;

[0076] S323, when the noise detection value is greater than the first noise threshold value, the indoor fan is reduced to a first set number of revolutions above the existing speed, and the air guide plate is controlled to sweep the air at a high angle, and then the process goes to step S322.

[0077] Specifically, if Figure 4 As shown, when the temperature difference is greater than or equal to the first preset value, the indoor heat exchange demand is high, and the indoor fan runs at a higher speed. Preferably, the fan speed first enters the highest wind speed, the sweep motor is opened to the maximum angle, and the sweep angle is limited, so that the wind guide plate sweeps at a high angle. Figure 2 , high-angle sweeping refers to the sweeping of air between the first preset opening angle α of the air guide plate and the maximum opening angle of the air guide plate, and α is preferably 60°. After a certain period of time, for example 2 minutes, the microphone sensor begins to intervene in the operation of the air conditioner, and the air conditioner noise is not allowed to exceed the noise threshold. At this time, the noise threshold executes the high threshold, that is, the first noise threshold value. If the noise detection value exceeds the noise threshold value, the indoor fan begins to reduce the first set speed, and the first set speed is preferably 50rpm, to reduce the operating noise of the air conditioner. Then, the step of comparing the noise detection value with the first noise threshold value is entered, so that the noise detection value satisfies or is less than or equal to the first noise threshold value.

[0078] Further optionally, when the noise detection value is less than or equal to the first noise threshold value, the indoor unit is maintained in the current operating state until the temperature difference is less than the first preset value;

[0079] Control the wind deflector to sweep the air at all angles.

[0080] Specifically, after the noise detection value meets the current noise requirement, the indoor unit is kept running with the current operating parameters unchanged until the temperature difference between the indoor ambient temperature and the indoor set temperature is less than the first preset value; then, the wind sweeping motor is controlled to push the wind guide plate to sweep the air at all angles. Figure 2 Full-angle sweeping refers to sweeping air between the minimum opening angle and the maximum opening angle of the air guide plate. In this embodiment, the minimum opening angle of the air guide plate is the air guide plate closing angle of 0°, and the maximum opening angle of the air guide plate is generally between 100° and 120°. Further, optionally, when the temperature difference is less than the first preset value, step S32 includes S324 to S326, wherein:

[0081] S324, controlling the indoor fan to operate at a second wind speed among a plurality of wind speeds, and controlling the sweeping motor to drive the air guide plate at its maximum operating speed to sweep air at all angles;

[0082] S325, comparing the noise detection value with the second noise threshold value;

[0083] S326, when the noise detection value is less than or equal to the second noise threshold value, maintaining the indoor unit in the current operating state;

[0084] S327, when the noise detection value is greater than the second noise threshold value, entering the air sweeping motor adjustment mode to adjust the speed of the air sweeping motor;

[0085] Among them, the second wind speed is lower than the first wind speed, the second noise threshold value is less than the first noise threshold value, and the first wind speed and the second noise threshold value are respectively the wind speed and noise threshold values ​​for the indoor fan to operate when the temperature difference is greater than or equal to the first preset value.

[0086] Specifically, the first preset value is generally between 3°C and 6°C, preferably 5°C. If the ambient temperature is compared with the user's set temperature, if the temperature difference is less than 5°C, the noise threshold will execute the second highest threshold, that is, the second noise threshold value, the fan speed will be adjusted to the second wind speed, and the wind sweeping motor will adopt the full-angle wind sweeping mode; at the same time, the microphone array detects the air vibration noise generated when the wind guide plate sweeps. If the noise detection value is greater than the second highest noise threshold value, the wind sweeping motor adjustment mode will be entered. That is, the wind sweeping motor has been distinguished from the traditional uniform speed wind sweeping mode, and the purpose of noise reduction is achieved by reducing the speed. Among them, taking the indoor fan with low, medium, high and strong wind speed as an example, when the first wind speed is preferably high wind speed, the second wind speed is preferably medium wind speed, and when the first wind speed is preferably strong wind speed, the second wind speed is preferably high wind speed.

[0087] Further optionally, in the wind sweeping motor adjustment mode, the mute control method includes:

[0088] A1~A2, among which:

[0089] A1, in each of a plurality of pre-divided sweep angle intervals, comparing the noise detection value with the second noise threshold value;

[0090] A2, when the noise detection value is greater than the second noise threshold value, reducing the second set speed above the existing wind sweep motor speed;

[0091] A3: When the noise detection value is less than or equal to the second noise threshold value, the air sweeping motor maintains a current speed.

[0092] It should be noted that when reducing the sweep motor speed, the reduced speed must be greater than or equal to the sweep motor's minimum operating speed. Furthermore, the minimum operating speed is not a fixed value and may vary depending on the specifications of the indoor unit. Furthermore, the second sweep motor speed is a single adjustment for the sweep motor speed. Those skilled in the art may reasonably set the second set speed based on the above circumstances, and this is not specifically limited here.

[0093] Specifically, after entering the adjustment mode of the wind sweeping motor, by detecting the noise decibels at different wind sweeping angles, the speed of the wind sweeping motor at the high-decibel wind sweeping angle is automatically adjusted, thereby achieving the purpose of noise reduction. For example, at the current fan speed, the wind sweeping motor is divided into intervals of every 15 degrees (or 30 degrees), and the wind sweeping noise is detected in each interval. If it is higher than the threshold value, the speed of the wind sweeping motor at the wind sweeping angle is reduced. That is, the wind sweeping motor is different from the traditional uniform speed wind sweeping mode. This is because the angle at which the air guide plate rotates will affect the air vibration noise. The greater the air volume at the air outlet, the greater the noise, and the faster the air guide plate is driven, the greater the noise.

[0094] Further optionally, in the wind sweeping motor adjustment mode, the mute control method further includes:

[0095] The running time of the wind sweeping motor adjustment mode is recorded, and when the running time is greater than or equal to a preset time, the wind sweeping motor adjustment mode is exited.

[0096] In order to ensure that the reduced speed of the wind sweeping motor is greater than or equal to the minimum operating speed of the wind sweeping motor, the running time of the wind sweeping motor adjustment mode is limited. Generally, the running time does not exceed three minutes, preferably three minutes.

[0097] Further optionally, after exiting the wind sweeping motor adjustment mode, the mute control method further includes:

[0098] Comparing the noise detection value with the second noise threshold value;

[0099] When the noise detection value is greater than the second noise threshold value, the indoor fan is caused to reduce a third set number of revolutions above the existing speed;

[0100] When the noise detection value is less than or equal to the second noise threshold value, the indoor unit maintains the current operating state;

[0101] The third set speed is smaller than the first set speed; the first set speed is the adjustment amount when the indoor fan speed is reduced when the temperature difference is greater than or equal to the first preset value.

[0102] Specifically, after exiting the wind sweeping motor adjustment mode, in order to ensure that the indoor unit noise meets the noise requirements, it is necessary to further determine whether the noise detection value is greater than the second noise threshold value. If it is greater, the third set speed is further reduced above the existing fan speed. The third set speed is less than the first set speed, preferably 30rpm.

[0103] Further optionally, the mute control method further includes:

[0104] A first noise threshold value set by a user is received, wherein a custom range of the first noise threshold value is related to a maximum noise value and a minimum noise value generated by the operation of the indoor unit.

[0105] This embodiment adds user-selectable noise control. This is because different users have different noise sensitivities, and each user's noise sensitivity varies in different states, such as sleeping, working, and relaxing. The purpose of adding this user-selectable mode is to maximize the heat exchange capacity of the air conditioner's indoor unit while maintaining acceptable noise levels.

[0106] Preferably, the air conditioner is provided with a personalized noise reduction mode B. Figure 5 , the user turns on the air conditioner, sets the temperature value T, and chooses to enter the intelligent noise reduction mode A or the personalized noise reduction mode B. If the intelligent noise reduction mode is entered, the noise threshold value is set internally by the program. If it is the personalized noise reduction mode, the noise value set by the user is selected and added to the high threshold value setting. The personalized setting of the noise value set by the user means that within the maximum noise requirement, the heat exchange capacity of the air conditioner is improved as much as possible, so that the customer's heat exchange efficiency and noise reduction requirements in a limited space can reach a balance, thereby improving the customer's user experience. After the user selects the air conditioner to enter the intelligent wind sweeping noise reduction mode or the personalized noise reduction mode, the microphone will not perform noise detection temporarily. The ambient temperature sensor starts to detect the ambient temperature and compares the ambient temperature at this time with the temperature set by the user.

[0107] Further optionally, the indoor fan is provided with a minimum wind speed and a maximum wind speed, and the silent control method further comprises:

[0108] When the air conditioner enters the noise reduction mode, the indoor fan is controlled to run at the highest wind speed, and the air guide plate is controlled to sweep air at all angles. The noise detection value at this time is obtained and used as the maximum noise value;

[0109] Control the indoor fan to run at the lowest wind speed, control the air guide plate to open to the maximum opening angle and then let it stand, obtain the noise detection value at this time, and use it as the minimum noise value;

[0110] High noise threshold value range: greater than or equal to (N h +N l ) / 2 and less than or equal to N h , N h Indicates the maximum noise value, N l Indicates the minimum noise value.

[0111] Regarding the noise threshold, the noise threshold is the noise threshold, which is combined with the noise detection microphone array to form the condition for noise judgment. Different air speeds of the air conditioner have corresponding fan speeds. When the air conditioner enters mode A or mode B, the indoor unit first performs noise detection. The indoor fan runs at the highest wind speed, the air guide plate sweeps the air at all angles, and the microphone array performs noise detection and outputs the highest noise value N. h The internal fan runs at the lowest speed, the air guide plate is opened to the maximum angle and then stops, the microphone array performs noise detection, and outputs the lowest noise value N l ; Then give the user a high noise threshold value N that can be set h The range is (N h +N l ) / 2 to N h .

[0112] A second aspect of the present invention provides an air conditioner control device, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement any one of the methods of the first aspect.

[0113] A third aspect of the present invention provides an air conditioner, which adopts any method of the first aspect, or includes the control device of the second aspect.

[0114] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0115] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0116] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A silent control method for an air conditioner, characterized in that: The indoor unit is provided with a noise detection module for detecting the noise in the environment in which the indoor unit is located. The mute control method includes: Get indoor ambient temperature and indoor set temperature; Determining an indoor heat exchange requirement and a corresponding noise threshold value according to the indoor ambient temperature and the indoor set temperature; A noise detection value is obtained, and the working state of the indoor unit is controlled according to the indoor heat exchange demand and the corresponding noise threshold value and the noise detection value.

2. The mute control method according to claim 1, characterized in that: Determine the indoor heat exchange requirements and corresponding noise thresholds based on the indoor ambient temperature and the indoor set temperature, including: Calculating the temperature difference between the indoor ambient temperature and the indoor set temperature; A noise threshold value corresponding to the temperature difference is obtained, wherein the higher the temperature difference is, the higher the corresponding noise threshold value is.

3. The mute control method according to claim 2, characterized in that: Controlling the working state of the indoor unit according to the indoor heat exchange demand and the corresponding noise threshold value and noise detection value includes: Determining the temperature range in which the temperature difference between the indoor ambient temperature and the indoor set temperature lies; In different temperature ranges, the indoor unit is controlled to operate in different working states, and the working state of the indoor unit is adjusted according to the noise detection value and the noise threshold value corresponding to the temperature range.

4. The mute control method according to claim 3, characterized in that: When the temperature difference is greater than or equal to a first preset value, the indoor unit is controlled to operate in a different working state, and the working state of the indoor unit is adjusted according to the noise detection value and the noise threshold value corresponding to the temperature range, including: Control the indoor fan to operate at the first wind speed among multiple wind speeds, and control the sweeping motor to drive the air guide plate to sweep the air at a high angle at its maximum operating speed; Comparing the noise detection value with the first noise threshold value; When the noise detection value is greater than the first noise threshold value, the indoor fan is reduced to a first set number of revolutions above the existing speed, the air guide plate is controlled to perform the high-angle sweeping, and the step of comparing the noise detection value with the first noise threshold value is entered.

5. The mute control method according to claim 4, characterized in that: When the noise detection value is less than or equal to the first noise threshold value, the indoor unit is kept in the current operating state until the temperature difference is less than the first preset value; Control the wind deflector to sweep the air at all angles.

6. The mute control method according to any one of claims 3 to 5, characterized in that: When the temperature difference is less than a first preset value, the indoor unit is controlled to operate in a different working state, and the working state of the indoor unit is adjusted according to the noise detection value and the noise threshold value corresponding to the temperature range, including: Control the indoor fan to operate at the second wind speed among multiple wind speeds, and control the sweeping motor to drive the air guide plate to sweep the air at its maximum operating speed to perform full-angle sweeping; comparing the noise detection value with a second noise threshold value; When the noise detection value is less than or equal to the second noise threshold value, the indoor unit maintains the current operating state; When the noise detection value is greater than the second noise threshold value, entering the air sweeping motor adjustment mode to adjust the speed of the air sweeping motor; The second wind speed is lower than the first wind speed, the second noise threshold is smaller than the first noise threshold, and the first wind speed and the second noise threshold are respectively the wind speed and noise threshold for the indoor fan to operate when the temperature difference is greater than or equal to the first preset value.

7. The mute control method according to claim 6, characterized in that: In the wind sweeping motor adjustment mode, the silent control method includes: In each of the plurality of pre-divided wind sweep angle intervals, the noise detection value is compared with the second noise threshold value; When the noise detection value is greater than the second noise threshold value, reducing the second set speed above the existing wind sweeping motor speed; When the noise detection value is less than or equal to the second noise threshold value, the air sweeping motor is kept at the current rotation speed.

8. The mute control method according to claim 7, characterized in that: In the wind sweeping motor adjustment mode, the mute control method further includes: The running time of the wind sweeping motor adjustment mode is recorded, and when the running time is greater than or equal to a preset time, the wind sweeping motor adjustment mode is exited.

9. The mute control method according to claim 8, characterized in that: After exiting the wind sweeping motor adjustment mode, the mute control method further includes: Comparing the noise detection value with the second noise threshold value; When the noise detection value is greater than the second noise threshold value, the indoor fan is caused to reduce a third set number of revolutions above the existing speed; When the noise detection value is less than or equal to the second noise threshold value, the indoor unit maintains the current operating state; The third set number of revolutions is smaller than the first set number of revolutions.

10. The mute control method according to claim 1, characterized in that: The mute control method further includes: A first noise threshold value set by a user is received, wherein a custom range of the first noise threshold value is related to a maximum noise value and a minimum noise value generated by the operation of the indoor unit.

11. The mute control method according to claim 10, characterized in that: The indoor fan is provided with a minimum wind speed and a maximum wind speed, and the silent control method further comprises: When the air conditioner enters the noise reduction mode, the indoor fan is controlled to run at the highest wind speed among the multiple wind speed settings, and the air guide plate is controlled to sweep air at all angles. The noise detection value at this time is obtained and used as the maximum noise value. Control the indoor fan to operate at the lowest wind speed among multiple wind speed settings, control the air guide plate to open to the maximum opening angle and then let it stand, obtain the noise detection value at this time, and use it as the minimum noise value; Custom range of noise threshold: greater than or equal to (N h +N l ) / 2 and less than or equal to N h , N h Indicates the maximum noise value, N l Indicates the minimum noise value.

12. A control device for an air conditioner, characterized in that: The method comprises one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are configured to implement the method according to any one of claims 1 to 11.

13. An air conditioner, characterized in that: It adopts the method according to any one of claims 1 to 11, or includes the control device according to claim 12.

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