Noise control method, control device, air conditioner, and heat pump

Abstract

The present invention belongs to the technical field of air conditioners and discloses a noise control method, a control device, an air conditioner, and a heat pump. The noise control method is used for noise control during air conditioner operation and includes the following steps: S1, noise collection and analysis: collecting and analyzing noise sound quality parameters, including loudness L1, sharpness S1, roughness R1, and fluctuation intensity F1; S2, air conditioner operation state parameter collection: collecting compressor frequency f, fan speed n, and electronic expansion valve opening under the noise state; S3, setting noise baseline parameters: including loudness Ljz, sharpness Sjz, roughness Rjz, and fluctuation intensity Fjz; S4, noise comparison and air conditioner operation state adjustment: adjusting the compressor frequency f, electronic expansion valve opening, and fan speed n according to the noise comparison results, and executing step S1 after the adjustment is completed. The noise control method can control the operation state of the air conditioner, thereby reducing operating noise, improving the sound quality of the product, and enhancing the user comfort of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a noise control method, a control device, an air conditioner, and a heat pump. Background Art

[0002] Air conditioners currently available on the market offer a variety of functions, including cooling, heating, ventilation, and dehumidification, creating a conditioned environment that meets diverse user needs. Air conditioners typically consist of an outdoor unit and an indoor unit connected to the outdoor unit, including but not limited to integrated and split units. When operating, the fans in both the outdoor and indoor units continue to run, generating noise.

[0003] When a user uses an air conditioner for cooling or heating, the indoor fan speed increases or decreases due to automatic adjustments or user changes to temperature, wind speed, and other settings, causing changes in the indoor air conditioning noise. Furthermore, changes in the indoor air speed directly affect the refrigerant pressure within the refrigeration piping system, causing changes in the outdoor unit noise. These noise changes significantly impact user comfort, primarily manifesting in the decibel level of the noise change, the speed of the noise change, and the presence of unusual transmission sounds or refrigerant flow noise. High noise levels, rapid changes, or the presence of unusual transmission sounds or refrigerant flow noise can severely impact user comfort.

[0004] Existing technologies, such as patent publication number CN201510083394.6, disclose a method for controlling the frequency modulation point of a heat pump unit. This method pre-sets the noise resonance band and abnormal sound frequency range in the product control program. Based on the output frequency and the input frequency range, the output frequency value is increased or decreased before being transmitted to the inverter, reducing the unit's noise and its impact on daily life. This solution only sets the preset frequency band during the development phase. After mass production, the actual frequency often deviates due to manufacturing consistency, resulting in continued high noise levels during actual use.

[0005] Therefore, there is an urgent need to provide a new noise control method, control device, air conditioner, and heat pump to solve the above technical problems in the prior art. Summary of the Invention

[0006] The object of the present invention is to provide a noise control method that can control the operating state of an air conditioner during actual use, thereby reducing operating noise, improving the sound quality of the product, and enhancing the comfort of use of the air conditioner.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] The noise control method is used for noise control during air-conditioning operation, and includes the following steps: S1, noise collection and analysis: collecting and analyzing noise quality parameters, including loudness L1, sharpness S1, roughness R1, and fluctuation intensity F1; S2, air-conditioning operation state parameter collection: collecting compressor frequency f, fan speed n, and electronic expansion valve opening under the noise state; S3, setting noise baseline parameters: including loudness Ljz, sharpness Sjz, roughness Rjz, and fluctuation intensity Fjz; S4, noise comparison and air-conditioning operation state adjustment: if L1-Ljz≥3sone, the compressor frequency f is gradually downshifted according to a first preset value, Then execute step S1 until the loudness L1-Ljz is less than 3sone; if L1-Ljz is less than 3sone and S1-Sjz ≥ 0.3*Sjz, the opening of the electronic expansion valve is gradually increased according to the second preset value, and then execute step S1 until S1-Sjz is less than 0.3*Sjz; if R1-Rjz ≥ 0.2*Rjz and F1-Fjz ≥ 0.01vacil, the fan speed n is increased according to the third preset value and the compressor frequency f is gradually decreased according to the first preset value, or the fan speed n is decreased according to the third preset value and the compressor frequency f is gradually increased according to the first preset value, and then execute step S1.

[0009] Optionally, step S1 includes a marking step before which the user marks the occurrence of a noise state through a remote control; and step S2 includes an uploading step after which the sound quality parameters of the noise and the air conditioner operation status parameters are fed back to the data center for subsequent statistical analysis.

[0010] Optionally, if the user mistakenly operates the mark and a noise state occurs, the mistaken operation information is fed back to the data center via the remote control, and the system program of the air conditioner is restored to the factory settings.

[0011] Optionally, if step S4 is executed three or more times in succession, it is determined that noise control cannot be performed, and the air conditioner enters silent mode.

[0012] Optionally, if the noise state still occurs in the silent mode, return to step S1 to step S4.

[0013] Optionally, in step S4, if L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, and the compressor frequency f at this time is less than 50 Hz, the opening of the electronic expansion valve is gradually increased according to the second preset value, and the compressor frequency f is gradually shifted up according to the first preset value; if L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, and the compressor frequency f at this time is ≥50 Hz, the opening of the electronic expansion valve is gradually increased according to the second preset value, and the compressor frequency f is gradually shifted down according to the first preset value.

[0014] Optionally, in step S4, when adjusting the electronic expansion valve opening, fan speed n and compressor frequency f, the electronic expansion valve opening does not exceed the preset opening range, the fan speed n does not exceed the preset speed range, and the compressor frequency f does not exceed the preset frequency range.

[0015] Optionally, the first preset value is 5 Hz, the second preset value is 20 steps, and the third preset value is 50 rpm.

[0016] Another object of the present invention is to provide a noise control device, which includes a main control module, a noise collection and analysis module, an operating parameter collection module and a communication module. The main control module stores and executes the noise control method described in any of the above schemes; the noise collection and analysis module is used to collect and analyze the sound quality parameters of noise under the noise state; the operating parameter collection module is used to collect the air-conditioning operating parameters under the noise state; the communication module is communicatively connected to the noise collection and analysis module and the operating parameter collection module, and is used to feed back the noise sound quality parameters and air-conditioning operating parameters to the data center.

[0017] Another object of the present invention is to provide an air conditioner comprising the noise control device as described in the above solution.

[0018] Beneficial effects:

[0019] The noise control method of the present invention is used for noise control during the operation of the air conditioner. Specifically, the sound quality parameters of the noise are collected under the noise state. By comparing the loudness L1, sharpness S1, roughness R1 and fluctuation intensity F1 of the noise with the noise reference parameters, the operating state of the air conditioner running in the current state is adjusted. For example, when the loudness L1 is 3sone greater than the reference loudness Ljz, the compressor frequency needs to be reduced; and when L1-Ljz is less than 3sone and S1-Sjz ≥ 0.3*Sjz, the expansion valve opening needs to be increased; if R1-Rjz ≥ 0.2*Rjz and F1-Fjz ≥ 0.01vacil, the fan speed needs to be increased and the compressor frequency needs to be reduced, or the fan speed needs to be reduced and the compressor frequency needs to be increased to achieve the adjustment of the air conditioner noise. The noise control method can control the operating state of the air conditioner during actual use, thereby reducing the operating noise, improving the sound quality of the product, and improving the comfort of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a flow chart of the noise control method provided in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0022] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0023] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0024] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0025] Please refer to Figure 1The noise control method is used for noise control during air conditioning operation. The noise control method includes the following steps: S1, noise collection and analysis: collecting and analyzing noise quality parameters, including loudness L1, sharpness S1, roughness R1, and fluctuation intensity F1; S2, air conditioning operation state parameter collection: collecting compressor frequency f, fan speed n, and electronic expansion valve opening under the noise state; S3, setting noise baseline parameters: including loudness Ljz, sharpness Sjz, roughness Rjz, and fluctuation intensity Fjz; S4, noise comparison and air conditioning operation state adjustment: if L1-Ljz≥3sone, then gradually downshifting the compressor frequency f according to the first preset value. Then execute step S1 until the loudness L1-Ljz is less than 3sone; if L1-Ljz is less than 3sone and S1-Sjz ≥ 0.3*Sjz, the opening of the electronic expansion valve is gradually increased according to the second preset value, and then execute step S1 until S1-Sjz is less than 0.3*Sjz; if R1-Rjz ≥ 0.2*Rjz and F1-Fjz ≥ 0.01vacil, the fan speed n is increased according to the third preset value and the compressor frequency f is gradually decreased according to the first preset value, or the fan speed n is decreased according to the third preset value and the compressor frequency f is gradually increased according to the first preset value, and then execute step S1.

[0026] The noise control method in this embodiment is used for noise control during the operation of the air conditioner. Specifically, the sound quality parameters of the noise are collected under the noise state. By comparing the loudness L1, sharpness S1, roughness R1 and fluctuation intensity F1 of the noise with the noise reference parameters, the operating state of the air conditioner running in the current state is adjusted. For example, when the loudness L1 is 3sone (sone is the unit of loudness) greater than the reference loudness Ljz, the compressor frequency needs to be reduced; and when L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, the expansion valve opening needs to be increased; if R1-Rjz≥0.2*Rjz and F1-Fjz≥0.01vacil (vacil is the unit of fluctuation intensity), the fan speed needs to be increased and the compressor frequency needs to be reduced, or the fan speed needs to be reduced and the compressor frequency needs to be increased to achieve the adjustment of the air conditioner noise. This noise control method can control the operating state of the air conditioner during actual use, thereby reducing the operating noise, improving the sound quality of the product, and improving the comfort of using the air conditioner.

[0027] Furthermore, before step S1, a marking step is included: the user uses the remote control to mark the occurrence of a noise state; after step S2, an uploading step is included, in which the noise sound quality parameters and air conditioner operating status parameters are fed back to the data center, and the data center performs subsequent statistical analysis. In other words, if the user finds that the air conditioner noise is causing discomfort and reducing comfort during actual use, the user presses the button on the remote control, which records the noise sound quality parameters and air conditioner operating status parameters at that time and uploads these parameters to the data center. The data center then analyzes and processes these parameters. If the number of user feedback on a particular air conditioner operating parameter exceeds a predetermined value, the operating status parameter is marked as a problem, and the user's air conditioner system program is upgraded to prevent the use of the operating status parameter in subsequent operations.

[0028] Furthermore, if a user mistakenly operates the flag and a noise state occurs, the remote control will report the error to the data center and restore the air conditioner's system program to factory settings. This setting can prevent users from mistakenly reporting noise conditions and avoid adjusting the air conditioner's operating state in low-noise conditions, which could lead to uncontrollable abnormal noise operation, further improving the user comfort of the air conditioner.

[0029] In this embodiment, if step S4 is executed three or more times in a row, it is determined that noise control is unavailable, and the air conditioner enters silent mode. That is, in step S4, whether adjusting the compressor frequency, fan speed, or expansion valve opening, is performed stepwise according to preset values. If the air conditioner still produces abnormal noise after three or more consecutive adjustments, i.e., after three consecutive adjustments according to the preset values, there is no need to perform a fourth adjustment, and the air conditioner is directly adjusted to silent mode. After entering silent mode, the compressor operating frequency is 80% of the set target frequency, and the fan speed is 80% of the set target speed. This is not further described here.

[0030] Furthermore, if the noise state still occurs in silent mode, the process returns to step S1 to step S4. If the air conditioner still makes abnormal noise in silent mode, the process returns to step S1 to S4 to further adjust the air conditioner status to improve the comfort of using the air conditioner in silent mode.

[0031] It should be noted that in step S4, if L1-Ljz < 3sone and S1-Sjz ≥ 0.3*Sjz, and the compressor frequency f is less than 50 Hz, the electronic expansion valve opening is gradually increased by the second preset value, and the compressor frequency f is gradually shifted up by the first preset value. If L1-Ljz < 3sone and S1-Sjz ≥ 0.3*Sjz, and the compressor frequency f is ≥ 50 Hz, the electronic expansion valve opening is gradually increased by the second preset value, and the compressor frequency f is gradually shifted down by the first preset value. When the compressor frequency is less than 50 Hz, the impact of the compressor is small, and it is necessary to reduce the fan speed while increasing the compressor frequency to reduce noise. When the compressor frequency is not less than 50 Hz, the impact of the fan speed is small, and it is necessary to increase the fan speed while reducing the compressor frequency to reduce noise. This ensures that the fan speed and compressor frequency are jointly controlled, thereby reducing the impact of air conditioning noise.

[0032] As a preferred embodiment, in step S4, when adjusting the electronic expansion valve opening, fan speed n, and compressor frequency f, the electronic expansion valve opening does not exceed a preset opening range, the fan speed n does not exceed a preset speed range, and the compressor frequency f does not exceed a preset frequency range. That is, whether lowering or raising the fan speed or the compressor frequency, the fan speed must not exceed the minimum and maximum limits, and the compressor frequency must not exceed the minimum and maximum limits, to ensure normal operation of the air conditioner. This will not be further elaborated here.

[0033] Specifically, the first preset value is 5 Hz, the second preset value is 20 steps, and the third preset value is 50 rpm. That is, the compressor frequency, expansion valve opening, and fan speed are adjusted using 5 Hz as a step, 20 steps as a step, or 50 rpm as a step, thereby gradually adjusting the air conditioner's operating state, ensuring smooth adjustment and accurately controlling noise.

[0034] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0035] This embodiment also provides a noise control device, comprising a main control module, a noise collection and analysis module, an operating parameter collection module, and a communication module. The main control module stores and executes the noise control method described in any of the above schemes; the noise collection and analysis module is used to collect and analyze sound quality parameters of noise in a noisy state; the operating parameter collection module is used to collect air conditioner operating parameters in a noisy state; and the communication module is communicatively connected to the noise collection and analysis module and the operating parameter collection module, and is used to feed back the noise quality parameters and air conditioner operating parameters to a data center. This noise control device is a human-machine interactive control device for air conditioner noise. While ensuring the air conditioner's output effect, it can gradually adjust the air conditioner's operating state to resolve abnormal air conditioner noise, improve the product's sound quality, and thus enhance user comfort.

[0036] This embodiment further provides an air conditioner, which includes the noise control device as described in the above solution. Alternatively, this embodiment further provides a heat pump, which includes the noise control device as described in the above solution. Whether it is a heat pump or an air conditioner, as long as it includes a compressor, an electronic expansion valve and a fan as system components and forms a cooling or heating cycle, the above-mentioned air conditioning equipment is included in the protection scope of this embodiment. Specifically, by adopting the above-mentioned noise control device, the air conditioner / heat pump can control the operating status of the air conditioner / heat pump during actual use, thereby reducing operating noise, improving the sound quality of the product, and improving the use comfort of the air conditioner / heat pump.

[0037] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A noise control method, characterized in that: Used for noise control during air conditioning operation, including the following steps: S1. Noise collection and analysis: Collect and analyze noise quality parameters, including loudness L1, sharpness S1, roughness R1, and fluctuation intensity F1; S2. Air conditioning operation status parameter collection: collecting the compressor frequency f, fan speed n and electronic expansion valve opening in the noise state; S3. Set noise baseline parameters: including loudness Ljz, sharpness Sjz, roughness Rjz and fluctuation intensity Fjz; S4. Noise comparison and air conditioning operation status adjustment: If L1-Ljz≥3sone, the compressor frequency f is gradually downshifted according to the first preset value, and then step S1 is executed until the loudness L1-Ljz<3sone; If L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, the opening of the electronic expansion valve is gradually increased according to the second preset value, and then step S1 is executed until S1-Sjz<0.3*Sjz; If R1-Rjz≥0.2*Rjz and F1-Fjz≥0.01vacil, the fan speed n is increased according to the third preset value and the compressor frequency f is gradually decreased according to the first preset value, or the fan speed n is decreased according to the third preset value and the compressor frequency f is gradually increased according to the first preset value, and then step S1 is executed.

2. The noise control method according to claim 1, characterized in that: Before step S1, a marking step is also included: the user uses the remote control to mark the occurrence of noise status; after step S2, an uploading step is also included to feed back the noise sound quality parameters and air conditioning operation status parameters to the data center, and the data center performs subsequent statistical analysis.

3. The noise control method according to claim 2, characterized in that: If the user mistakenly operates the mark and a noise state occurs, the error operation information will be fed back to the data center through the remote control, and the air conditioner system program will be restored to the factory settings.

4. The noise control method according to claim 1, characterized in that: If step S4 is executed three or more times in succession, it is determined that noise control cannot be performed, and the air conditioner enters silent mode.

5. The noise control method according to claim 4, characterized in that: If the noise state still occurs in the silent mode, the process returns to step S1 to step S4.

6. The noise control method according to any one of claims 1 to 5, characterized in that: In step S4, if L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, and the compressor frequency f at this time is less than 50Hz, the opening of the electronic expansion valve is gradually increased according to the second preset value, and the compressor frequency f is gradually shifted up according to the first preset value; if L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, and the compressor frequency f at this time is ≥50Hz, the opening of the electronic expansion valve is gradually increased according to the second preset value, and the compressor frequency f is gradually shifted down according to the first preset value.

7. The noise control method according to any one of claims 1 to 5, characterized in that: In step S4, when adjusting the electronic expansion valve opening, the fan speed n and the compressor frequency f, the electronic expansion valve opening does not exceed the preset opening range, the fan speed n does not exceed the preset speed range, and the compressor frequency f does not exceed the preset frequency range.

8. The noise control method according to any one of claims 1 to 5, characterized in that: The first preset value is 5 Hz, the second preset value is 20 steps, and the third preset value is 50 rpm.

9. A noise control device, characterized in that: include: A main control module, storing and executing the noise control method according to any one of claims 1 to 8; A noise collection and analysis module, which is used to collect and analyze sound quality parameters of noise in a noise state; An operating parameter acquisition module, configured to acquire operating parameters of the air conditioner under a noisy state; The communication module is communicatively connected to the noise collection and analysis module and the operation parameter collection module, and is used to feed back the noise sound quality parameters and air conditioning operation parameters to the data center.

10. Air conditioner, characterized in that Comprising the noise control device of claim 9.

11. A heat pump, characterized in that Comprising the noise control device of claim 9.

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