CN114688720A - Control method and device for noise reduction of air conditioner - Google Patents
Control method and device for noise reduction of air conditioner Download PDFInfo
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- CN114688720A CN114688720A CN202210324347.6A CN202210324347A CN114688720A CN 114688720 A CN114688720 A CN 114688720A CN 202210324347 A CN202210324347 A CN 202210324347A CN 114688720 A CN114688720 A CN 114688720A
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- 230000009467 reduction Effects 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 64
- 239000003507 refrigerant Substances 0.000 claims abstract description 126
- 230000003584 silencer Effects 0.000 claims abstract description 67
- 238000004590 computer program Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 abstract description 12
- 230000008859 change Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- Human Computer Interaction (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method and a device for air conditioner noise reduction, wherein the method comprises the following steps: acquiring a current refrigerant noise signal of an air conditioner outdoor unit; adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal; and reducing the noise of the air conditioner external unit by using the electronic silencer according to the target cavity volume. According to the control method and the device for reducing the noise of the air conditioner, the cavity volume of the electronic silencer is adjusted to the target cavity volume according to the current refrigerant noise signal generated when the air conditioner external unit operates, and the electronic silencer can be used for reducing the noise of the refrigerant generated under different working conditions, so that the pertinence of the noise reduction of the air conditioner and the noise reduction effect are improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a control method and device for noise reduction of an air conditioner.
Background
At present, noise is a serious pollution source and affects the quality of daily life of people, and the noise generated by air conditioner products in the operation process is also a non-negligible part.
The outdoor unit of the air conditioner can generate refrigerant noise with different degrees in the running process. The refrigerant noise includes refrigerant airflow sound and liquid flow sound, and the generated sound of pipeline vibration and pipeline collision. The noise is related to the quantity of the refrigerant, the flow rate, the thickness of the pipeline and the direction of the pipeline.
In order to eliminate the noise of the refrigerant, it is a common practice to connect an air conditioner silencer in series in a pipeline of an air conditioner external unit. However, the air conditioner muffler of single model can not be better be applicable to the different operating modes of the outer machine of air conditioner, and the noise reduction effect is relatively poor.
Disclosure of Invention
The invention provides a control method and a control device for noise reduction of an air conditioner, which are used for overcoming the defects in the prior art and realizing better noise reduction effect of an air conditioner external unit under different working conditions.
In a first aspect, the present invention provides a method for controlling noise reduction of an air conditioner, including: acquiring a current refrigerant noise signal of an air conditioner outdoor unit; adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal; and reducing the noise of the air conditioner external unit by using the electronic silencer according to the target cavity volume.
According to the control method for noise reduction of the air conditioner, the step of adjusting the cavity volume of the electronic silencer to the target cavity volume according to the current refrigerant noise signal comprises the following steps: and under the condition that the current noise value of the current refrigerant noise signal is smaller than a noise threshold value, keeping the volume of the cavity of the electronic silencer unchanged.
According to the control method for reducing noise of the air conditioner provided by the invention, under the condition that the current noise value of the current refrigerant noise signal is greater than or equal to the noise threshold value, the cavity volume of the electronic silencer is adjusted to the target cavity volume according to the current refrigerant noise signal, and the method comprises the following steps:
step 1: determining the adjustment quantity of the cavity volume according to the difference value of the current noise value of the current refrigerant noise signal and the noise threshold value;
and 2, step: acquiring a real-time refrigerant noise signal after the volume of the cavity is adjusted according to the adjustment quantity, and taking the real-time refrigerant noise signal as a new current refrigerant noise signal;
and step 3: and repeating the step 1 to the step 2 until the current noise value is smaller than the noise threshold value.
According to the control method for reducing the noise of the air conditioner, provided by the invention, under the condition that the current noise value of the current refrigerant noise signal after each adjustment is greater than or equal to the noise threshold value, the adjustment of the cavity volume of the electronic silencer to the target cavity volume according to the current refrigerant noise signal comprises the following steps: confirming the volume of the target cavity according to each current noise value; and the target cavity volume is the cavity volume of the electronic silencer when the noise value of the real-time refrigerant noise signal is the minimum value.
According to the control method for reducing the noise of the air conditioner provided by the invention, after the electronic silencer is used for reducing the noise of the air conditioner outdoor unit by using the target cavity volume, the control method further comprises the following steps: generating a noise reduction signal according to the noise parameter of the current refrigerant noise signal; and actively reducing the noise of the air conditioner external unit by using the noise reduction signal.
According to the control method for reducing the noise of the air conditioner, the step of acquiring the current refrigerant noise signal of the air conditioner outdoor unit comprises the following steps: acquiring the variable quantity of the operating frequency of an air conditioner external unit; and acquiring the current refrigerant noise signal under the condition that the operation frequency variation is larger than a preset frequency threshold.
According to the control method for air conditioner noise reduction provided by the invention, the noise reduction signal has the same frequency and opposite phase with the current refrigerant noise signal.
In a second aspect, the present invention further provides a control device for noise reduction of an air conditioner, including: the device comprises a signal acquisition module, a cavity adjusting module and a noise reduction module.
The signal acquisition module is used for acquiring a current refrigerant noise signal of an air conditioner outdoor unit;
the cavity adjusting module is used for adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal;
and the noise reduction module is used for reducing the noise of the air conditioner external unit by using the electronic silencer according to the target cavity volume.
In a third aspect, the present invention further provides an air conditioner, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the above-mentioned methods for controlling noise reduction of the air conditioner when executing the computer program.
In a fourth aspect, the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the control method for reducing noise of an air conditioner according to any one of the above methods.
In a fifth aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing the control method for noise reduction of an air conditioner as described in any one of the above.
According to the control method and the device for air conditioner noise reduction, the cavity volume of the electronic silencer is adjusted to the target cavity volume according to the current refrigerant noise signal generated when the air conditioner external unit operates, noise reduction can be performed on the refrigerant noise generated under different working conditions by using the electronic silencer, and the pertinence and the noise reduction effect of the air conditioner noise reduction are improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a control method for noise reduction of an air conditioner according to the present invention;
FIG. 2 is a second schematic flow chart of the noise reduction control method for an air conditioner according to the present invention;
FIG. 3 is a schematic structural diagram of a noise reduction control device for an air conditioner according to the present invention;
fig. 4 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. Further, "and/or" indicates at least one of the connected objects, the character "/", generally indicating that the former and latter related objects are in an "or" relationship.
The following describes a control method and device for noise reduction of an air conditioner according to an embodiment of the present invention with reference to fig. 1 to 4.
Fig. 1 is a schematic flow chart of a control method for noise reduction of an air conditioner according to the present invention, as shown in fig. 1, including but not limited to the following steps:
step 101: and acquiring a current refrigerant noise signal of an air conditioner external unit.
In the invention, in order to collect the current refrigerant noise signal generated by the air conditioner external unit, a sound collection device can be arranged on a pipeline of the air conditioner external unit. Wherein, the sound collection device can be a noise sensor.
The information included in the current refrigerant noise signal includes, but is not limited to, basic noise parameters such as a noise value (decibel value), a noise peak value, a noise direction, and a noise frequency.
Step 102: and adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal.
The silencer can reduce noises such as airflow sound, liquid flow sound and pipeline vibration sound in a pipeline of the air conditioner outdoor unit by using principles such as sound absorption, reflection, interference and the like. The common air conditioner silencer is of a cylindrical hollow structure and is connected in series in an air conditioner external unit pipeline. The silencer has various sizes with different sizes, and the main differences are length, diameter, cavity volume, shape and the like. Generally, the volume of the chamber can be selected to be suitable for the noise of different frequency bands generated by the air conditioner. Therefore, the volume of the cavity of the traditional silencer is fixed and unchanged, and the traditional silencer cannot achieve a good noise reduction effect on refrigerant noise generated by an air conditioner external unit under different working conditions.
Based on the technical scheme, the electronic silencer with the adjustable cavity volume is used for reducing noise of the refrigerant under different working conditions.
The electronic muffler can change the cavity volume of the electronic muffler by controlling the position of the baffle plate arranged in the cavity of the muffler.
Specifically, the electronic muffler provided by the invention can be provided with a baffle plate in the cavity of the muffler main body, and the baffle plate is connected with the baffle plate driving device. The baffle driving device is used for driving the baffle to slide back and forth in the cavity. Wherein, the driving mode can be motor driving.
Optionally, the present invention may adjust the cavity volume of the electronic muffler to the target cavity volume according to parameters such as the vibration frequency and the loudness of the current refrigerant noise signal, so that one or more of the parameters meet a preset condition. For example, when the loudness of the current refrigerant noise signal is high, the cavity volume may be changed by adjusting a baffle in the electronic muffler until the loudness drops below a preset value, and the current cavity volume is taken as the target cavity volume.
Alternatively, when the air conditioner starts to operate and the air conditioner outdoor unit starts, the baffle of the electronic silencer can be controlled to sequentially operate to a plurality of positions so as to change the cavity volume of the silencer, such as K1 and K2 … K10, wherein 10 different positions correspond to 10 different cavity volumes, and the baffle stays for T time at each position. And simultaneously recording the current noise value of the corresponding current refrigerant noise signal, wherein the current noise value can be recorded as X1 and X2 … X10, and the total number of the 10 values is 10, adjusting the cavity volume of the electronic silencer to the corresponding state with the minimum current noise value according to the 10 values, and the cavity volume in the corresponding state is the target cavity volume.
It should be noted that, in order to enable the sound detection device to detect the real and effective current refrigerant noise signal, the length of the time T may be adaptively set according to the sound detection device.
Step 103: and utilizing the electronic silencer to reduce the noise of the air conditioner external unit according to the volume of the target cavity.
It should be noted that the target cavity volume may be determined by adjusting the cavity volume of the electronic muffler multiple times, and after the target cavity volume is adjusted, the noise of the refrigerant may be reduced when the air conditioner external unit operates.
The invention can reduce the noise of the refrigerant to a level suitable for the life and work of human beings through the electronic silencer. For example, the refrigerant noise can be reduced to below 50 decibels by the electronic silencer, so that a user can obtain good experience.
The invention provides a control method for noise reduction of an air conditioner, which is characterized in that the cavity volume of an electronic silencer is adjusted to the target cavity volume according to the current refrigerant noise signal generated by an air conditioner external unit during operation, and the electronic silencer can be used for reducing noise aiming at the refrigerant noise generated under different working conditions, so that the pertinence and the noise reduction effect of the noise reduction of the air conditioner are improved.
Fig. 2 is a second flowchart of the method for controlling noise reduction of an air conditioner according to the present invention, and as shown in fig. 2, the adjusting the cavity volume of the electronic muffler to the target cavity volume according to the current refrigerant noise signal includes: and under the condition that the current noise value of the current refrigerant noise signal is smaller than a noise threshold value, keeping the volume of the cavity of the electronic silencer unchanged.
The current noise value may be a decibel value of the current refrigerant noise signal. Because the air conditioner user may not feel the interference caused by the refrigerant noise when the decibel value of the refrigerant noise is lower, namely, smaller than the noise threshold value, no special means is needed to perform noise reduction processing on the refrigerant noise of the air conditioner at this time. The noise threshold value can be set to be 60 decibels, and when the current noise value is smaller than the noise threshold value, the volume of the cavity of the electronic silencer is not required to be adjusted because an air conditioner user does not strongly perceive the noise of the refrigerant.
Based on the content of the foregoing embodiment, as an optional embodiment, the present invention provides a method for controlling noise reduction of an air conditioner, where when a current noise value of a current refrigerant noise signal is greater than or equal to a noise threshold, the adjusting a cavity volume of an electronic muffler to a target cavity volume according to the current refrigerant noise signal includes: step 1: determining the adjustment quantity of the cavity volume according to the difference value between the current noise value of the current refrigerant noise signal and the noise threshold value; and 2, step: acquiring a real-time refrigerant noise signal after the volume of the cavity is adjusted according to the adjustment quantity, and taking the real-time refrigerant noise signal as a new current refrigerant noise signal; and 3, step 3: and repeating the step 1 to the step 2 until the current noise value is smaller than the noise threshold value.
In order to adjust the cavity volume of the electronic muffler more accurately, the adjustment may be performed according to a difference between a current noise value and a noise threshold, for example, the current noise value is 100 db, the noise threshold is 60 db, the length of a sound-absorbing cavity of the electronic muffler is 10 cm, an initial position of the baffle is 1 cm, the cavity volume is one tenth of the total cavity volume, and assuming that the cavity volume of the sound-absorbing cavity is uniformly distributed, the adjustment amount of the cavity volume may be represented according to the adjustment length at each time. In this embodiment, the adjustment process of the cavity volume of the electronic muffler can be as follows:
adjusting for the first time: when the current noise value is 100 decibels and the noise threshold value is 60 decibels, the difference value is 40 decibels, and the adjusting length can be determined to be 3 centimeters; and acquiring the adjusted real-time refrigerant noise signal, taking the signal as a new current refrigerant noise signal, and obtaining a new current noise value of 85 decibels.
And (3) second adjustment: when the current noise value is 85 decibels and the noise threshold value is 60 decibels, the difference value is 25 decibels, and the adjusting length can be determined to be 2 centimeters; and acquiring the adjusted real-time refrigerant noise signal, taking the adjusted real-time refrigerant noise signal as a new current refrigerant noise signal, and obtaining a new current noise value of 65 decibels.
And (3) third adjustment: when the current noise value is 65 decibels and the noise threshold value is 60 decibels, the difference value is 5 decibels, and the adjusting length can be determined to be 0.5 centimeter; and acquiring the adjusted real-time refrigerant noise signal, taking the signal as a new current refrigerant noise signal, and obtaining a new current noise value of 55 decibels.
After the electronic silencer is adjusted for 3 times, if the current noise value is 55 decibels and is less than the noise threshold value by 60 decibels, the volume of the cavity of the electronic silencer is not adjusted at the moment.
Based on the content of the foregoing embodiment, as an optional embodiment, the present invention provides a method for controlling noise reduction of an air conditioner, where in a case that a current noise value of a current refrigerant noise signal after each adjustment is greater than or equal to the noise threshold, the adjusting a cavity volume of an electronic muffler to a target cavity volume according to the current refrigerant noise signal includes: confirming the volume of the target cavity according to each current noise value; the target cavity volume is the cavity volume of the electronic silencer when the noise value of the real-time refrigerant noise signal is the minimum value.
Since the physical length (cavity volume) of the electronic muffler has a certain limit, it is likely that a preset noise reduction target cannot be achieved by adjusting the cavity volume, that is, the current noise value is less than or equal to the noise threshold.
At this time, when the noise value of the real-time refrigerant noise signal is the minimum value, the corresponding cavity volume may be selected as the target cavity volume.
Based on the content of the foregoing embodiment, as an optional embodiment, the present invention provides a method for controlling noise reduction of an air conditioner, where after the electronic muffler is used to reduce noise of an air conditioner external unit by a target cavity volume, the method further includes: generating a noise reduction signal according to the noise parameter of the current refrigerant noise signal; and actively reducing the noise of the air conditioner external unit by using the noise reduction signal.
After the air conditioner is denoised by the electronic silencer, the current noise value is still larger than or equal to the noise threshold value. The invention can further reduce the noise of the refrigerant of the air conditioner outdoor unit by using an active noise reduction mode.
After the air conditioner controller collects the current refrigerant noise signal through the sound collection device, the current refrigerant noise signal can be analyzed and processed, and then a series of noise parameters of the current refrigerant noise signal can be obtained.
Wherein the noise parameters include but are not limited to: noise amplitude, noise peak, noise direction, noise frequency, and the like. The invention can generate corresponding noise reduction signals according to the noise parameters of the current refrigerant noise signals. The noise reduction signal may be generated by a noise reduction speaker, which may be disposed adjacent to the electronic muffler. It should be noted that the electric silencer may be disposed in series in a duct of the air conditioner outdoor unit.
Optionally, the noise reduction signal has the same frequency but an opposite phase to the current refrigerant noise signal, and the noise reduction signal may superimpose and offset the current refrigerant noise signal to perform a noise reduction function.
According to the control method for reducing the noise of the air conditioner, the noise of the air conditioner is reduced through the electronic silencer, and further, the noise of a refrigerant of an air conditioner outdoor unit is actively reduced through the noise reduction signal generated, so that a more excellent noise reduction effect can be obtained.
Based on the content of the foregoing embodiment, as an optional embodiment, the present invention provides a method for controlling noise reduction of an air conditioner, where the obtaining of a current refrigerant noise signal of an external unit of the air conditioner includes: acquiring the variable quantity of the operating frequency of an air conditioner external unit; and acquiring the current refrigerant noise signal under the condition that the operation frequency variation is larger than a preset frequency threshold.
The outer machine of air conditioner can involve the change of operating parameter in the operation course to lead to the running noise of the outer machine of air conditioner itself to change, then in order to make the outer machine of air conditioner noise effect in the course of the work be in always can not bring the within range that uncomfortable experience for the user, specifically can judge whether again to fall the processing of making an uproar to the air conditioner according to the running frequency variation of the outer machine of air conditioner.
And under the condition that the operation frequency variation is larger than the preset frequency threshold, the noise reduction treatment can be carried out on the air conditioner external unit again.
Optionally, the operation frequency variation amount may be represented by a variation of a motor speed of the air conditioner external unit, and the preset frequency threshold may be represented by a speed variation threshold.
Generally, when the rotation speed of the motor is increased, the noise value is increased or decreased, and otherwise, when the variation (increase or decrease) of the rotation speed of the motor reaches a corresponding rotation speed variation threshold, the current refrigerant noise signal generated when the air conditioner external unit operates can be collected, and the current refrigerant noise signal is utilized to perform air conditioner noise reduction.
It should be noted that the selection of the rotation speed variation threshold varies according to different performances of the air conditioner, and may be determined according to specific situations.
According to the control method for reducing the noise of the air conditioner, the operation frequency variation of the air conditioner external unit is compared with the preset frequency threshold, and the noise reduction treatment is carried out on the air conditioner under the condition that the operation frequency is larger than the preset frequency threshold, so that the noise reduction effect of the air conditioner can be achieved more timely and accurately.
Fig. 3 is a schematic structural diagram of a control device for noise reduction of an air conditioner according to the present invention, and as shown in fig. 3, the device includes: the device comprises a signal acquisition module 301, a cavity adjusting module 302 and a noise reduction module 303.
The signal acquiring module 301 is configured to acquire a current refrigerant noise signal of an air conditioner external unit.
In the invention, in order to collect the current refrigerant noise signal generated by the air conditioner external unit, a sound collection device can be arranged on a pipeline of the air conditioner external unit. Wherein, the sound collection device can be a noise sensor.
The current refrigerant noise signal includes, but is not limited to, basic noise parameters such as a noise value (decibel value), a noise peak value, a noise direction, and a noise frequency.
And the cavity adjusting module 302 is configured to adjust the cavity volume of the electronic muffler to a target cavity volume according to the current refrigerant noise signal.
Based on the above embodiment, the volume of the cavity of the traditional silencer is fixed, so that the traditional silencer cannot achieve a good noise reduction effect on the refrigerant noise generated by the air conditioner outdoor unit under different working conditions.
Based on the technical scheme, the electronic silencer with the adjustable cavity volume is used for reducing noise of the refrigerant under different working conditions.
The electronic muffler can change the cavity volume of the electronic muffler by controlling the position of the baffle plate arranged in the cavity of the muffler.
Specifically, the electronic muffler provided by the invention can be provided with a baffle plate in the cavity of the muffler main body, and the baffle plate is connected with the baffle plate driving device. The baffle driving device is used for driving the baffle to slide back and forth in the cavity. Wherein, the driving mode can be motor driving.
Optionally, the present invention may adjust the cavity volume of the electronic muffler to the target cavity volume according to parameters such as the vibration frequency and the loudness of the current refrigerant noise signal, so that one or more of the parameters meet a preset condition. For example, when the loudness of the current refrigerant noise signal is high, the cavity volume may be changed by adjusting a baffle in the electronic muffler until the loudness drops below a preset value, and the current cavity volume is taken as the target cavity volume.
Alternatively, when the air conditioner starts to operate and the air conditioner outdoor unit starts, the baffle of the electronic silencer can be controlled to sequentially operate to a plurality of positions so as to change the cavity volume of the silencer, for example, K1 and K2 … K10, wherein 10 positions correspond to 10 cavity volumes, and the baffle stays for T time at each position. And simultaneously recording the current noise value of the corresponding current refrigerant noise signal, wherein the current noise value can be recorded as X1 and X2 … X10, and the total number of the 10 values is 10, the lowest value can be obtained according to the 10 values, the cavity volume of the electronic silencer is adjusted to the corresponding state with the minimum current noise value, and the cavity volume in the corresponding state is the target cavity volume.
It should be noted that, in order to enable the sound detection device to detect the real and effective current refrigerant noise signal, the length of the time T may be adaptively set according to the sound detection device.
And the noise reduction module 303 is configured to utilize the electronic muffler to reduce noise of the air conditioner external unit by using a target cavity volume.
The target cavity volume can be determined by adjusting the cavity volume of the electronic silencer for multiple times, and after the target cavity volume is adjusted, the noise of the refrigerant can be reduced when the air conditioner external unit operates.
The invention can reduce the noise of the refrigerant to a level suitable for the life and work of human beings through the electronic silencer. For example, the refrigerant noise can be reduced to below 50 decibels by the electronic silencer, so that a user can obtain good experience.
The invention provides a control device for noise reduction of an air conditioner, which is used for adjusting the cavity volume of an electronic silencer to a target cavity volume according to a current refrigerant noise signal generated by an air conditioner external unit during operation, and reducing noise aiming at the refrigerant noise generated under different working conditions by using the electronic silencer, thereby improving the noise reduction pertinence and the noise reduction effect of the air conditioner.
It should be noted that, the control device for noise reduction of an air conditioner according to the embodiment of the present invention may execute the control method for noise reduction of an air conditioner according to any of the above embodiments when the control device is in specific operation, which is not described in detail in this embodiment.
The invention also provides an air conditioner, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor can call the computer program in the memory to execute a control method for reducing noise of the air conditioner, and the method comprises the following steps: acquiring a current refrigerant noise signal of an air conditioner outdoor unit; adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal; and reducing the noise of the air conditioner external unit by using the electronic silencer according to the target cavity volume.
According to the air conditioner provided by the invention, the cavity volume of the electronic silencer is adjusted to the target cavity volume according to the current refrigerant noise signal generated by the air conditioner external unit during operation, and the electronic silencer can be used for reducing noise aiming at the refrigerant noise generated under different working conditions, so that the noise reduction pertinence and the noise reduction effect of the air conditioner are improved.
Fig. 4 is a schematic structural diagram of an electronic device provided in the present invention, and as shown in fig. 4, the electronic device may include: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may call logic instructions in the memory 430 to perform a control method of noise reduction of the air conditioner, the method including: acquiring a current refrigerant noise signal of an air conditioner outdoor unit; adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal; and utilizing the electronic silencer to reduce the noise of the air conditioner external unit according to the volume of the target cavity.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to execute the method for controlling noise reduction of an air conditioner provided by the above methods, the method comprising: acquiring a current refrigerant noise signal of an air conditioner outdoor unit; adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal; and reducing the noise of the air conditioner external unit by using the electronic silencer according to the target cavity volume.
In still another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, the computer program being implemented by a processor to perform the method for controlling noise reduction of an air conditioner provided in the above embodiments, the method including: acquiring a current refrigerant noise signal of an air conditioner outdoor unit; adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal; and utilizing the electronic silencer to reduce the noise of the air conditioner external unit according to the volume of the target cavity.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A control method for noise reduction of an air conditioner is characterized by comprising the following steps:
acquiring a current refrigerant noise signal of an air conditioner outdoor unit;
adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal;
and utilizing the electronic silencer to reduce the noise of the air conditioner external unit according to the volume of the target cavity.
2. The method as claimed in claim 1, wherein the adjusting the cavity volume of the electronic muffler to the target cavity volume according to the current refrigerant noise signal comprises:
and under the condition that the current noise value of the current refrigerant noise signal is smaller than a noise threshold value, keeping the volume of the cavity of the electronic silencer unchanged.
3. The method as claimed in claim 2, wherein the adjusting the cavity volume of the electronic muffler to the target cavity volume according to the current refrigerant noise signal when the current noise value of the current refrigerant noise signal is greater than or equal to the noise threshold value comprises:
step 1: determining the adjustment quantity of the cavity volume according to the difference value of the current noise value of the current refrigerant noise signal and the noise threshold value;
and 2, step: acquiring a real-time refrigerant noise signal after the volume of the cavity is adjusted according to the adjustment quantity, and taking the real-time refrigerant noise signal as a new current refrigerant noise signal;
and step 3: and repeating the step 1 to the step 2 until the current noise value is smaller than the noise threshold value.
4. The method as claimed in claim 3, wherein the adjusting the cavity volume of the electronic muffler to the target cavity volume according to the current refrigerant noise signal when the current noise value of the current refrigerant noise signal after each adjustment is greater than or equal to the noise threshold value comprises:
confirming the volume of the target cavity according to each current noise value;
the target cavity volume is the cavity volume of the electronic silencer when the noise value of the real-time refrigerant noise signal is the minimum value.
5. The method for controlling noise reduction of an air conditioner according to claim 4, further comprising, after the electronic muffler is used to reduce noise of the outdoor unit of the air conditioner by a target cavity volume:
generating a noise reduction signal according to the noise parameter of the current refrigerant noise signal;
and actively reducing the noise of the air conditioner external unit by using the noise reduction signal.
6. The method as claimed in claim 1, wherein the obtaining a current refrigerant noise signal of an outdoor unit of an air conditioner comprises:
acquiring the variable quantity of the operating frequency of an air conditioner external unit;
and acquiring the current refrigerant noise signal under the condition that the operation frequency variation is larger than a preset frequency threshold.
7. The control method of noise reduction of an air conditioner according to claim 5,
the noise reduction signal has the same frequency and opposite phase with the current refrigerant noise signal.
8. A control device for noise reduction of an air conditioner, comprising:
the signal acquisition module is used for acquiring a current refrigerant noise signal of an air conditioner outdoor unit;
the cavity adjusting module is used for adjusting the cavity volume of the electronic silencer to a target cavity volume according to the current refrigerant noise signal;
and the noise reduction module is used for reducing noise of the air conditioner external unit by using the electronic silencer according to the target cavity volume.
9. An air conditioner comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements the control method for noise reduction of the air conditioner according to any one of claims 1 to 7 when executing the computer program.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the control method for noise reduction of an air conditioner according to any one of claims 1 to 7 when executing the computer program.
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