Noise control method and device, air conditioner and heat pump

Abstract

The invention belongs to the technical field of air conditioners, and discloses a noise control method and device, an air conditioner and a heat pump. The noise control method is used for noise control in the operation process of the air conditioner and comprises the steps that S1, noise collection and analysis are conducted, specifically, sound quality parameters of noise are collected and analyzed, and the sound quality parameters comprise the loudness L1, the sharpness S1, the roughness R1 and the fluctuation intensity F1; s2, air conditioner operation state parameter collection, wherein the compressor frequency f, the fan rotating speed n and the electronic expansion valve opening degree in the noise state are collected; s3, setting noise reference parameters including loudness Ljz, sharpness Sjz, roughness Rjz and fluctuation intensity Fjz; and S4, noise comparison and air conditioner operation state adjustment are conducted, specifically, the compressor frequency f, the electronic expansion valve opening degree and the fan rotating speed n are adjusted according to the noise comparison result, and the step S1 is executed after adjustment is completed. The noise control method can control the operation state of the air conditioner, so that the operation noise is reduced, the sound quality of a product is improved, and the use comfort of the air conditioner is improved.

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 can provide various functions such as cooling, heating, ventilation, and dehumidification, so as to create a regulated environment that can meet the different needs of users. Air conditioners generally include an outdoor unit and an indoor unit connected to the outdoor unit, and include but are not limited to integrated air conditioners and split units. In operation, the fans of both the outdoor unit and the indoor unit will keep running, so both will generate noise.

[0003] When users use room air conditioners for cooling or heating, the increase or decrease in indoor fan speed caused by automatic air conditioning adjustment or user changes in temperature, wind speed and other setting parameters will cause changes in indoor air conditioning noise. At the same time, the change in wind speed of the air conditioner indoor unit directly affects the change in refrigerant pressure inside the refrigeration pipeline system, thereby causing changes in the noise of the air conditioner outdoor unit. This type of noise change has a great impact on the user's comfort, mainly manifested in the decibel value of the noise change, the speed of the noise decibel value change, whether there is abnormal transmission sound, and whether there is abnormal refrigerant flow sound. When the noise changes in decibel value is large, the change speed is fast, or is accompanied by abnormal transmission sound, abnormal refrigerant flow sound and other phenomena, it will seriously affect the noise comfort of users using air conditioning.

[0004] In the prior art, such as the patent publication number CN201510083394.6, a method for controlling the frequency modulation point of a heat pump unit is disclosed. The noise resonance band and abnormal sound frequency range are preset in the control program in advance, and the output frequency value is increased or decreased according to the output frequency and the first input frequency range before being transmitted to the inverter, thereby reducing the unit noise and the impact on daily life. This solution only sets the preset frequency band in the development stage. After the product is mass-produced, it is affected by the consistency of production and manufacturing, and the actual frequency often deviates, resulting in still high noise 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-mentioned technical problems in the prior art. Summary of the invention

[0006] The object of the present invention is to provide a noise control method, which 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 the operation of an air conditioner. The noise control method comprises the following steps: S1, noise collection and analysis: collecting and analyzing the sound quality parameters of the noise, including loudness L1, sharpness S1, roughness R1 and fluctuation intensity F1; S2, air conditioner operation state parameter collection: collecting the 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: if L1-Ljz≥3sone, the compressor frequency f is gradually downshifted according to the first preset value, Then execute step S1 until the loudness L1-Ljz is less than 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 execute step S1 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 execute step S1.

[0009] Optionally, before step S1, a marking step is also included: the user marks the occurrence of noise status through a remote control; after step S2, an uploading step is also included to feed back the sound quality parameters of the noise and the air conditioning operation status parameters to the data center, and the data center performs subsequent statistical analysis.

[0010] Optionally, if the user operates the mark incorrectly and a noise state occurs, the incorrect 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 is less than 50Hz at this time, 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 is greater than 50Hz at this time, 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 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.

[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, wherein the main control module stores and executes the noise control method as 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 sound quality parameters of noise and the 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 in 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 operation 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 needs to be frequency-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, 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 operation state of the air conditioner during actual use, thereby reducing the operation 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 a 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 in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

[0024] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0025] Please refer to Figure 1The noise control method is used for noise control during the operation of the air conditioner. The noise control method includes the following steps: S1, noise collection and analysis: collecting and analyzing the sound quality parameters of the noise, including loudness L1, sharpness S1, roughness R1 and fluctuation intensity F1; S2, air conditioner operation state parameter collection: collecting the 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: if L1-Ljz≥3sone, the compressor frequency f is gradually downshifted 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 operation 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 needs to be frequency-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. The noise control method can control the operation state of the air conditioner during actual use, thereby reducing the operation noise, improving the sound quality of the product, and improving the comfort of the air conditioner.

[0027] Furthermore, before step S1, a marking step is also included: the user marks the occurrence of a noise state through the remote control; after step S2, an uploading step is also included, in which the sound quality parameters of the noise and the air conditioner operation state parameters are fed back to the data center, and the data center performs subsequent statistical analysis. That is, during actual use, the user finds that the noise of the air conditioner causes disgust and reduced comfort. At this time, the user presses the case on the remote control to record the sound quality parameters of the noise and the air conditioner operation state parameters at this time, and uploads the above parameters to the data center, which analyzes and processes the above parameters. If the number of times the user feedbacks a certain air conditioner operation parameter exceeds a predetermined value, the operation state parameter is marked as a problem state, and the user's air conditioner system program is upgraded to avoid using the operation state parameter in subsequent operation.

[0028] Furthermore, if the user mistakenly operates the mark to cause a noise state, the remote control will feedback the mistaken operation information to the data center, and the air conditioner system program will be restored to the factory settings. This setting can prevent users from mistakenly reporting the noise state and avoid adjusting the air conditioner operation state in a low-noise state, thereby preventing the air conditioner from operating in an uncontrollable state with abnormal noise, further improving the comfort of the air conditioner.

[0029] In this embodiment, if step S4 is executed more than three times in succession, it is determined that noise control cannot be performed, and the air conditioner enters silent mode. That is, in step S4, whether adjusting the compressor frequency, fan speed or expansion valve opening, they are all adjusted step by step according to the preset value. If the air conditioner still has abnormal noise after continuous adjustment for more than three times, that is, continuous adjustment according to the preset value for three times, there is no need to perform the fourth adjustment at this time, 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 to be achieved, and the fan speed is 80% of the set target speed to be achieved, which will not be repeated here.

[0030] Furthermore, if the noise still occurs in silent mode, the process returns to step S1 to step S4. If the air conditioner still has abnormal noise in silent mode, the process returns to step S1 to step 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, the compressor frequency f at this time is less than 50Hz, then the electronic expansion valve opening is gradually increased according to the second preset value, and the compressor frequency f is gradually upgraded according to the first preset value; if L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, the compressor frequency f at this time is ≥50Hz, then the electronic expansion valve opening is gradually increased according to the second preset value, and the compressor frequency f is gradually downgraded according to the first preset value. When the compressor frequency is less than 50Hz, the influence of the compressor is small at this time, 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 50Hz, the influence of the fan speed is small at this time, and it is necessary to increase the fan speed while reducing the compressor frequency to reduce noise. In this way, the joint control of the fan speed and the compressor frequency is guaranteed, thereby reducing the influence of air conditioning noise.

[0032] As a preferred embodiment, in step S4, when adjusting the opening of the electronic expansion valve, the fan speed n and the compressor frequency f, the opening of the electronic expansion valve 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. That is, whether the fan speed is reduced or increased, whether the compressor frequency is reduced or increased, the fan speed needs to not exceed the minimum and maximum limits, and the compressor frequency needs to not exceed the minimum and minimum limits, to ensure the normal operation of the air conditioner, which will not be repeated here.

[0033] Specifically, the first preset value is 5Hz, the second preset value is 20 steps, and the third preset value is 50rpm. That is, the compressor frequency, expansion valve opening and fan speed are adjusted with 5Hz as one gear, 20 steps as one gear or 50rpm as one gear, so as to gradually adjust the air conditioner operation state, ensure smooth adjustment, and thus accurately achieve noise control.

[0034] A person 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 instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0035] This embodiment also provides a noise control device, which includes a main control module, a noise collection and analysis module, an operation 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 operation parameter collection module is used to collect the air-conditioning operation parameters under the noise 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 sound quality parameters of noise and the air-conditioning operation parameters to the data center. The noise control device is an air-conditioning noise human-computer interactive control device, which can gradually adjust the operation state of the air-conditioning while ensuring the output effect of the air-conditioning, so as to solve the problem of abnormal noise of the air-conditioning, improve the sound quality of the product, and thus improve the user comfort.

[0036] The present embodiment further provides an air conditioner, which includes the noise control device as described in the above scheme. Or the present embodiment further provides a heat pump, which includes the noise control device as described in the above scheme. 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 refrigeration or heating cycle, the above-mentioned air conditioning equipment is included in the protection scope of this embodiment. Specifically, the air conditioner / heat pump can control the operating state of the air conditioner / heat pump during actual use by adopting the above-mentioned noise control device, thereby reducing operating noise, improving the sound quality of the product, and improving the comfort of use of the air conditioner / heat pump.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope 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 the sound quality parameters of noise, including loudness L1, sharpness S1, roughness R1 and fluctuation intensity F1; S2, air conditioning operation status parameter collection: collect the compressor frequency f, fan speed n and electronic expansion valve opening under the noise state; S3. Set noise benchmark 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 marks the occurrence of noise status through the remote control; after step S2, an uploading step is also included to feed back the sound quality parameters of the noise and the 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 system program of the air conditioner 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 is less than 50Hz at this time, the opening of the electronic expansion valve is gradually increased according to the second preset value, and the compressor frequency f is gradually increased according to the first preset value; if L1-Ljz<3sone and S1-Sjz≥0.3*Sjz, and the compressor frequency f is greater than 50Hz at this time, the opening of the electronic expansion valve is gradually increased according to the second preset value, and the compressor frequency f is gradually decreased 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 opening of the electronic expansion valve, the fan speed n and the compressor frequency f, the opening of the electronic expansion valve 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 as described in claims 1-8; 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, the operating parameter acquisition module is used to collect operating parameters of the air conditioner under a noise state; A 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 sound quality parameters of the noise and the air conditioning operation parameters to the data center.

10. An air conditioner, characterized in that Comprising the noise control device as claimed in claim 9.

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

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