CN113970160B - Method and device for reducing noise of air conditioner and air conditioner - Google Patents
Method and device for reducing noise of air conditioner and air conditioner Download PDFInfo
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- CN113970160B CN113970160B CN202111285280.1A CN202111285280A CN113970160B CN 113970160 B CN113970160 B CN 113970160B CN 202111285280 A CN202111285280 A CN 202111285280A CN 113970160 B CN113970160 B CN 113970160B
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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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
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
- 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
- F24F2013/247—Active noise-suppression
Abstract
The invention discloses a method and a device for reducing noise of an air conditioner and the air conditioner, wherein the method comprises the steps that an ultra-strong compressor of the air conditioner stably enters logic judgment, a first preset temperature value a is set, and a preset rotating speed value is set; acquiring a first temperature t1 in the middle of the evaporator at intervals of t, and acquiring a second temperature t2 of a gas collecting pipe at the outlet of the evaporator at intervals of t; recording the temperature difference value delta t of N evaporators at the time interval t; obtaining a variance value S of temperature difference values delta t of the N evaporators; judging whether the air conditioner generates noise or not according to the variance value S and the first preset temperature value a; determining a target operation parameter value of the air conditioner according to the judgment result; and controlling the air conditioner to operate at the target operation parameter operation value. The invention has the characteristics that the rotating speed of the inner fan is adjusted by judging the temperature difference between the middle temperature sensing bulb of the evaporator and the temperature sensing bulb at the position of the evaporator, so that the rotating speed of the inner fan is stable, the noise of the air conditioner is reduced, the comfort of the user is improved, and the fault code is displayed by recording the number of times of triggering the logic.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a method and a device for reducing air conditioning noise and an air conditioner.
Background
The main noise sources of the existing household air conditioner indoor unit are wind noise of the through-flow fan blade and electromagnetic noise of the motor, after the existing household air conditioner is used for a long time, the motor of the indoor unit can not run in a long-time high-rotation-speed mode due to the service life problem, the user sets an ultra-strong gear at the moment, the motor cannot reach the maximum rotation speed due to the fact that the motor receives a command of the maximum rotation speed, the rotation speed of the motor can be ignored, the wind noise generated by the through-flow fan blade can be ignored, and user experience is affected.
The patent number is CN112797483A, and the patent provides a scheme for solving the problem of sudden and small wind noise caused by swinging of a wind sweeping blade during air supply, but the scheme needs an AI module and a processing module, and simultaneously needs to continuously change the rotating speed of a motor, so that the cost is high, and the service life of the motor of the indoor unit can be reduced.
Disclosure of Invention
In order to overcome the above disadvantages of the prior art, the present invention provides a method and apparatus for reducing noise of an air conditioner, and an air conditioner.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for reducing noise of an air conditioner comprises the following steps:
s1: the air conditioner enters an ultra-strong refrigeration mode to operate, and after the compressor operates stably, the air conditioner is controlled to enter logic judgment for reducing noise of the air conditioner;
the logic judgment for reducing the noise of the air conditioner comprises the following steps:
s2: setting a first preset temperature value a and a preset rotating speed value;
s3: acquiring a first temperature value t1 in the middle of the evaporator at intervals of t, and acquiring a second temperature value t2 of a gas collecting pipe at an outlet of the evaporator at intervals of t;
recording the temperature difference value delta t of N evaporators at the time interval t, wherein the delta t is t2-t 1;
obtaining a variance value S of the temperature difference value delta t of the N evaporators;
s4: judging whether the air conditioner generates noise or not according to the variance value S and the first preset temperature value a;
s5: determining a target operation parameter value of the air conditioner according to the judgment result;
wherein the S5 includes: if so, the target operation parameter value is that the current rotating speed value is reduced by the preset rotating speed value;
if not, the target operation parameter value is the current rotating speed value;
s6: controlling the air conditioner to operate at the target operation parameter operation value;
wherein the S6 includes: and controlling the rotating speed value of the motor of the air conditioner to operate corresponding to the rotating speed value in the S5.
As a further improvement of the invention: after S6, the method further includes: s7: after the time t1, controlling the air conditioner to operate the S2-S6; if the judgment result of the S5 is yes, and if the current rotating speed value of the motor of the air conditioner is larger than the rotating speed value of the motor when the air conditioner is at a high windshield, controlling the current rotating speed value of the motor of the air conditioner to be reduced to the rotating speed value of the motor when the air conditioner is at the high windshield.
As a further improvement of the invention: the S7 further includes: if the judgment result of the step S5 is yes, and if the current rotating speed value of the motor of the air conditioner is less than or equal to the rotating speed value of the motor at the high windshield of the air conditioner, controlling the current rotating speed value of the motor of the air conditioner to be kept unchanged.
As a further improvement of the invention: the variance value S is greater than the first preset temperature value a, and the judgment result is yes; and if the variance value S is smaller than the first preset temperature value a, judging that the variance value S is not larger than the first preset temperature value a.
As a further improvement of the invention: the S1 includes: and the controller of the air conditioner judges whether the operating frequency of the compressor is unchanged, and if the operating frequency of the compressor is unchanged, the air conditioner is controlled to enter logic judgment for reducing the noise of the air conditioner.
As a further improvement of the invention: and if the air conditioner triggers the logic judgment for reducing the noise of the air conditioner for three times continuously, the air conditioner sends fault information to a master control system, and a fault code is displayed on a display panel of the air conditioner.
As a further improvement of the invention: the value range of the first preset temperature value a is 0-1.
As a further improvement of the invention: the value of the first preset temperature value a is 1.
As a further improvement of the invention: the value of the first preset temperature value a is 0.3.
An apparatus for reducing noise of an air conditioner, comprising: an acquisition module: the evaporator comprises a first temperature sensing bulb arranged in the middle of the evaporator and a second temperature sensing bulb arranged on a gas collecting pipe at an outlet of the evaporator;
a judgment module: the air conditioner is used for judging whether the air conditioner needs to enter a logic judgment mode for reducing the noise of the air conditioner according to whether the running frequency of the compressor changes or not;
the air conditioner is used for judging whether the air conditioner generates noise according to the small relation between the variance value S and the first preset temperature value a to obtain a judgment result;
a determination module: the system is used for determining target operation parameters of the air conditioner according to the judgment result;
a control module: and the motor is used for controlling the air conditioner and operating the corresponding rotating speed value according to the judgment result.
An air conditioner and a method for reducing noise of the air conditioner.
Compared with the prior art, the invention has the beneficial effects that:
under the logic control of reducing the noise of the air conditioner, the invention adjusts the rotating speed of the inner fan by judging the temperature difference between the middle temperature sensing bulb of the evaporator and the two temperature sensing bulbs at the position of the outlet evaporator, so that the rotating speed of the inner fan is stable, the noise is reduced, the use comfort of a user is improved, and meanwhile, the fault code is displayed by recording the number of times of triggering the logic.
The invention identifies whether the rotating speed is uneven or not by judging the change rate of the difference value of the intermediate temperature of the evaporator and the temperature at the position of the outlet of the evaporator, thereby reducing the rotating speed, enabling the motor to stably run and eliminating the wind noise which is suddenly large and sudden small; and can also help the after-sales personnel to judge the source of the problem.
Drawings
FIG. 1 is a flow chart of logic control for reducing noise of an air conditioner according to the present invention.
FIG. 2 is a schematic structural diagram of a placement position of a thermal bulb according to the present invention.
Fig. 3 is an experimental value of the evaporator temperature value when the air conditioner motor has a stable rating of ± 0.3.
Detailed Description
The invention will now be further described with reference to the accompanying description and examples:
as shown in fig. 1 to 3, example 1: a method for reducing noise of an air conditioner comprises the following steps:
s1: the air conditioner enters an ultra-strong refrigeration mode to operate, and after the compressor operates stably, the air conditioner is controlled to enter logic judgment for reducing noise of the air conditioner;
specifically, the S1 includes: and the controller of the air conditioner judges whether the operating frequency of the compressor is unchanged, and if the operating frequency of the compressor is unchanged, the air conditioner is controlled to enter logic judgment for reducing the noise of the air conditioner.
When the air conditioner is in a super-strong gear in a refrigerating state, the controller judges the running frequency of the compressor, if the running frequency of the compressor does not change within 10 minutes, judgment logic is started, and if the running frequency of the compressor changes within 10 minutes, the logic is not judged.
The logic judgment for reducing the noise of the air conditioner comprises the following steps:
s2: setting a first preset temperature value a and a preset rotating speed value;
s3: acquiring a first temperature t1 in the middle of the evaporator at intervals of t, and acquiring a second temperature t2 of a gas collecting pipe at the outlet of the evaporator at intervals of t;
recording the temperature difference value delta t of N evaporators at the time interval of t, wherein the delta t is t2-t 1;
judging whether heat exchange is uniform at present or not by judging the difference value between t1 and t2, so as to judge whether the electricity is in stable rotating speed operation or not;
and acquiring a variance value S of the temperature difference values delta t of the N evaporators.
Specifically, after the logic is started for judgment, data is acquired every 1min by taking t2-t1 as Δ t, and the data are recorded as Δ t1, Δ t2, Δ t3, Δ t4 and Δ t5, then the average value Δ t is calculated, the variance S is calculated, and the S is judged.
S4: judging whether the air conditioner generates noise or not according to the variance value S and the first preset temperature value a;
specifically, the variance value S is greater than the first preset temperature value a, and the determination result is yes; and if the variance value S is smaller than the first preset temperature value a, judging that the variance value S is not larger than the first preset temperature value a.
More specifically, through 5 collected groups of data, a variance S is calculated and used for representing the intermediate temperature of the evaporator and the intensity of change of the evaporator in 5 minutes, if S is smaller than a, the system is uniform in heat exchange, the rotating speed of the motor is stable, the rotating speed does not need to be adjusted, a is a fixed value and used for judging the intensity of change of S, the first preset value of a is 1, the second preset value ranges from 0 to 1, and the adjustment can be carried out according to the precision.
If S is larger than a, the heat exchange of the system is not uniform, the rotating speed of the motor is unstable, the rotating speed of the cross-flow fan is also unstable, the wind speed is suddenly increased or decreased, and the rotating speed of the motor is changed to n0 which is n (the current rotating speed) -100;
after 5min, the next S value S1 is calculated, and if S1 > a, n0 is again equal to n (current speed) -100 until n0 is equal to high gear speed.
S5: determining a target operation parameter value of the air conditioner according to the judgment result;
wherein the S5 includes: if so, the target operation parameter value is the reduction of the current rotating speed value by the preset rotating speed value;
if not, the target operation parameter value is the current rotating speed value;
s6: controlling the air conditioner to operate at the target operation parameter operation value;
wherein the S6 includes: and controlling the rotating speed value of the motor of the air conditioner to operate corresponding to the rotating speed value in the S5.
After S6, the method further includes:
s7: after the time t1, controlling the air conditioner to operate the S2-S6; if the judgment result of the step S5 is yes, and if the current rotating speed value of the motor of the air conditioner is greater than the rotating speed value of the motor at the high windshield of the air conditioner, controlling the current rotating speed value of the motor of the air conditioner to be reduced to the rotating speed value of the motor at the high windshield of the air conditioner.
The S7 further includes:
if the judgment result of the step S5 is yes, and if the current rotating speed value of the motor of the air conditioner is less than or equal to the rotating speed value of the motor at the high windshield of the air conditioner, controlling the current rotating speed value of the motor of the air conditioner to be kept unchanged.
And if the air conditioner triggers the logic judgment for reducing the noise of the air conditioner for three times continuously, the air conditioner sends fault information to a main control system, and a fault code is displayed on a display panel of the air conditioner.
The value range of the first preset temperature value a is 0-1.
The value of the first preset temperature value a is 1.
The value of the first preset temperature value a is 0.3.
An apparatus for reducing noise of an air conditioner, comprising: an acquisition module: the evaporator comprises a first temperature-sensing bulb arranged in the middle of the evaporator and a second temperature-sensing bulb arranged on a gas collecting pipe at the outlet of the evaporator;
the first temperature sensing bulb is used for detecting the intermediate temperature t1 of the evaporator, and the second temperature sensing bulb is used for detecting the temperature t2 at the gas collecting pipe of the evaporator;
a judgment module: the air conditioner is used for judging whether the air conditioner needs to enter a logic judgment mode for reducing the noise of the air conditioner according to whether the running frequency of the compressor changes or not;
the air conditioner is used for judging whether the air conditioner generates noise according to the small relation between the variance value S and the first preset temperature value a to obtain a judgment result;
a determination module: the target operation parameters of the air conditioner are determined according to the judgment result;
a control module: and the motor is used for controlling the air conditioner and operating the corresponding rotating speed value according to the judgment result.
Implementation 3: an air conditioner and a method for reducing noise of the air conditioner.
The working principle of the invention is as follows: the logic control for reducing the noise of the air conditioner judges whether the heat exchange is uniform or not by judging the difference change of the temperature of the refrigerant of the evaporator and the temperature of the refrigerant in the middle of the evaporator, and further judges whether the air volume is uniform or not, so that whether the rotating speed of the motor is stable or not is judged, when the rotating speed is stable, the temperature of the refrigerant out of the evaporator and the temperature of the refrigerant in the middle of the evaporator are stable, the difference change fluctuates within the range of +/-0.3, and when the air volume is not uniform due to unstable rotating speed, so that the heat exchange quantity is changed, the difference between the temperature of the refrigerant out of the evaporator and the temperature of the refrigerant in the middle of the evaporator fluctuates.
In summary, after reading the present disclosure, those skilled in the art can make various other corresponding changes without creative mental work according to the technical solutions and concepts of the present disclosure, and all of them are within the protection scope of the present disclosure.
Claims (9)
1. A method for reducing noise of an air conditioner is characterized by comprising the following steps:
s1: the air conditioner enters an ultra-strong refrigeration mode to operate, and after the compressor stably operates, the air conditioner is controlled to enter logic judgment for reducing the noise of the air conditioner;
the logic judgment for reducing the noise of the air conditioner comprises the following steps:
s2: setting a first preset temperature value a and a preset rotating speed value;
s3: acquiring a first temperature t1 in the middle of the evaporator at intervals of t, and acquiring a second temperature t2 of a gas collecting pipe at the outlet of the evaporator at intervals of t;
recording N temperature difference differences Δ t of the evaporator per time interval t, said Δ t = t2-t 1;
obtaining a variance value S of the temperature difference value delta t of the N evaporators;
s4: judging whether the air conditioner generates noise or not according to the variance value S and the first preset temperature value a;
the variance value S is greater than the first preset temperature value a, and the judgment result is yes; the variance value S is smaller than the first preset temperature value a, and the judgment result is negative;
s5: determining a target operation parameter value of the air conditioner according to the judgment result;
wherein the S5 includes: if so, the target operation parameter value is that the current rotating speed value is reduced by the preset rotating speed value;
if not, the target operation parameter value is the current rotating speed value;
s6: controlling the air conditioner to operate at the target operation parameter operation value;
wherein the S6 includes: and controlling the rotating speed value of the motor of the air conditioner to operate corresponding to the rotating speed value in the S5.
2. The method for reducing noise of an air conditioner according to claim 1, further comprising, after S6: s7: after the time t1, controlling the air conditioner to operate the S2-S6; if the judgment result of the step S5 is yes, and if the current rotating speed value of the motor of the air conditioner is greater than the rotating speed value of the motor at the high windshield of the air conditioner, controlling the current rotating speed value of the motor of the air conditioner to be reduced to the rotating speed value of the motor at the high windshield of the air conditioner.
3. The method for reducing noise of an air conditioner according to claim 2, wherein the step S7 further comprises: if the judgment result of the step S5 is yes, and if the current rotating speed value of the motor of the air conditioner is less than or equal to the rotating speed value of the motor at the high windshield of the air conditioner, controlling the current rotating speed value of the motor of the air conditioner to be kept unchanged.
4. The method for reducing noise of an air conditioner according to claim 1, wherein the S1 includes: and the controller of the air conditioner judges whether the operating frequency of the compressor is unchanged, and if the operating frequency of the compressor is unchanged, the air conditioner is controlled to enter logic judgment for reducing the noise of the air conditioner.
5. The method for reducing the noise of the air conditioner according to any one of claims 1 to 4, wherein if the air conditioner triggers the logic for reducing the noise of the air conditioner three times in succession, the air conditioner sends a fault message to a main control system, and a fault code is displayed on a display board of the air conditioner.
6. The method for reducing noise of an air conditioner according to claim 1, wherein the first preset temperature value a is in a range of 0-1.
7. The method for reducing noise of an air conditioner according to claim 1, wherein the first preset temperature value a has a value of 1.
8. An apparatus for reducing noise of an air conditioner according to any one of claims 1 to 7, comprising:
an acquisition module: the evaporator comprises a first temperature sensing bulb arranged in the middle of the evaporator and a second temperature sensing bulb arranged on a gas collecting pipe at an outlet of the evaporator;
a judgment module: the air conditioner is used for judging whether the air conditioner needs to enter a logic judgment mode for reducing the noise of the air conditioner according to whether the running frequency of the compressor changes or not;
the air conditioner is used for judging whether the air conditioner generates noise according to the size relation between the variance value S and the first preset temperature value a to obtain a judgment result;
the determining module: the system is used for determining target operation parameters of the air conditioner according to the judgment result;
a control module: and the motor is used for controlling the air conditioner and operating the corresponding rotating speed value according to the judgment result.
9. An air conditioner characterized by using a method of reducing noise of the air conditioner according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111285280.1A CN113970160B (en) | 2021-11-01 | 2021-11-01 | Method and device for reducing noise of air conditioner and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111285280.1A CN113970160B (en) | 2021-11-01 | 2021-11-01 | Method and device for reducing noise of air conditioner and air conditioner |
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| CN113970160A CN113970160A (en) | 2022-01-25 |
| CN113970160B true CN113970160B (en) | 2022-07-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000033614A (en) * | 1998-11-25 | 2000-06-15 | 전주범 | Method for removing wet compression of air conditioner |
| US20050050911A1 (en) * | 2003-09-09 | 2005-03-10 | Samsung Electronics Co., Ltd. | Air conditioner |
| JP2006234285A (en) * | 2005-02-25 | 2006-09-07 | Sharp Corp | Integrated air-conditioner |
| GB2512129A (en) * | 2013-03-21 | 2014-09-24 | Enigin Plc | Force-cooled air-conditioning system |
| CN112066532A (en) * | 2020-08-20 | 2020-12-11 | 珠海格力电器股份有限公司 | Method and device for eliminating noise of air conditioner, electronic equipment and storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0626713A (en) * | 1992-07-10 | 1994-02-04 | Toshiba Corp | Air conditioner |
-
2021
- 2021-11-01 CN CN202111285280.1A patent/CN113970160B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000033614A (en) * | 1998-11-25 | 2000-06-15 | 전주범 | Method for removing wet compression of air conditioner |
| US20050050911A1 (en) * | 2003-09-09 | 2005-03-10 | Samsung Electronics Co., Ltd. | Air conditioner |
| JP2006234285A (en) * | 2005-02-25 | 2006-09-07 | Sharp Corp | Integrated air-conditioner |
| GB2512129A (en) * | 2013-03-21 | 2014-09-24 | Enigin Plc | Force-cooled air-conditioning system |
| CN112066532A (en) * | 2020-08-20 | 2020-12-11 | 珠海格力电器股份有限公司 | Method and device for eliminating noise of air conditioner, electronic equipment and storage medium |
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