CN117387186A - Control method for mute operation of air conditioner, storage medium and air conditioner - Google Patents
Control method for mute operation of air conditioner, storage medium and air conditioner Download PDFInfo
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- CN117387186A CN117387186A CN202311626749.2A CN202311626749A CN117387186A CN 117387186 A CN117387186 A CN 117387186A CN 202311626749 A CN202311626749 A CN 202311626749A CN 117387186 A CN117387186 A CN 117387186A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000010977 unit operation Methods 0.000 claims abstract description 61
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 238000004590 computer program Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 6
- 230000001743 silencing effect Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 32
- 238000010586 diagram Methods 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Classifications
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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
- F24F11/65—Electronic processing for selecting an operating mode
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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
-
- 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
-
- 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
-
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method for mute operation of an air conditioner, a storage medium and the air conditioner, and belongs to the technical field of air conditioner control. The method comprises the following steps: when the unit is in the refrigeration mode, if a mute operation instruction is received, executing: detecting the low pressure of the unit operation, if the low pressure of the unit operation is in the target low pressure range, successively controlling the frequency of the compressor to be reduced by a set first gradient until the low pressure of the unit operation after the frequency of the compressor is reduced exceeds the upper limit of the target low pressure range, controlling the compressor to operate according to the frequency after the last reduction adjustment, detecting the high pressure of the unit operation after the compressor operates at the frequency, and if the high pressure of the unit operation is in the target low pressure range, successively controlling the rotation speed of the outer fan to be reduced by a set second gradient until the high pressure of the unit operation after the rotation speed of the outer fan is reduced exceeds the upper limit of the target low pressure range, and controlling the outer fan to operate according to the rotation speed after the last reduction adjustment. The invention can further reduce the frequency of the compressor and the rotating speed of the external fan and optimize the silencing effect on the basis of ensuring the basic capability of the unit to meet the requirement.
Description
Technical Field
The present invention relates to the field of air conditioner control technologies, and in particular, to a control method for silent operation of an air conditioner, a storage medium, and an air conditioner.
Background
Considering that the noise of the environment at night is smaller, in order to avoid the influence of the operation noise of the air conditioner external unit on the customer experience, a night mute mode is often set when the air conditioner is designed, the existing mute operation mode is generally to artificially reduce the highest operation values of the compressor and the external fan (for example, the highest operation frequency of the compressor is 80Hz when the air conditioner normally operates, and the highest operation frequency is 65Hz after entering the night mute mode), and the air conditioner is started by default after leaving a factory.
In the mute mode, the unit is usually used for achieving lower operation noise as a first target, but the prior scheme only simply limits the highest operation frequency of the compressor and the fan. When in actual refrigeration operation, low pressure is often used as a control target, the output of the compressor is increased when the system low pressure is higher than the target, and the output is reduced when the system low pressure is lower than the target. The rotating speed of the external fan takes the high pressure of the system as a control target, when the rotating speed of the external fan is higher than the target, the rotating speed of the external fan is increased, and when the rotating speed of the external fan is lower than the target, the rotating speed of the external fan is reduced. However, since the target low pressure of the system is a range of values (e.g. the target low pressure is 6-9Bar at 35 ℃), and the compressor is not stepped up but is stepped up (e.g. 4Hz for each up-regulation of the compressor) according to the low pressure compensation, the unit may be maintained at the target low pressure limit at this time, i.e. the compressor is operated at a limited maximum frequency, and the high pressure at this time is also in a higher range, so that the rotation speed of the external fan is higher, and the mute operation which does not really reach the limit is not caused.
Therefore, the existing control method of the air conditioner mute mode has a further reduction space for the operation frequency of the compressor and the external fan, and the real limit mute is not achieved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a control method for mute operation of an air conditioner, a storage medium and the air conditioner, and the frequency of a compressor and the rotating speed of an external fan can be reduced as much as possible on the basis of ensuring the basic capability of a unit to meet the requirements.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
in a first aspect, the present invention provides a method for controlling a mute operation of an air conditioner, including:
when the unit is in a refrigeration mode, responding to receiving a mute operation instruction, and executing the following mute control operation;
detecting the running low pressure of the unit, and comparing the running low pressure with a preset target low pressure range:
if the unit operation low pressure is in the target low pressure range, gradually controlling the frequency reduction of the compressor according to a set first gradient until the unit operation low pressure after the frequency reduction of the compressor exceeds the upper limit of the target low pressure range, controlling the compressor to operate according to the frequency after the last reduction adjustment, and detecting the unit operation high pressure after the compressor operates at the frequency;
comparing the unit operation high pressure with a preset target high pressure range:
and if the unit operation high pressure is in the target high pressure range, gradually controlling the rotation speed of the external fan to be reduced by a set second gradient until the unit operation high pressure after the rotation speed of the external fan is reduced exceeds the upper limit of the target high pressure range, and controlling the external fan to operate according to the rotation speed after the adjustment of the last reduction.
Optionally, the method of the present invention further comprises: when comparing the detected unit operation low pressure with a preset target low pressure range, if the unit operation low pressure exceeds the upper limit of the target low pressure range, gradually controlling the compressor frequency to be increased by a set third gradient until the unit operation low pressure after the compressor frequency is increased is in the target low pressure range. The invention can enable the low pressure of the unit to be as close to the upper limit of the target low pressure range as possible when the compressor operates at the finally determined frequency. If the low pressure of the initial unit exceeds the limit, the low pressure of the unit is required to be adjusted to restore the target low pressure range, and then the reduction adjustment of the frequency of the compressor is carried out according to the mute control operation logic until a frequency value of the compressor, which is closest to the upper limit of the target low pressure range, of the low pressure of the unit under the first gradient standard is obtained.
Optionally, the method of the present invention further comprises: when comparing the detected unit operation high pressure with a preset target high pressure range, if the unit operation high pressure exceeds the upper limit of the target high pressure range, gradually controlling the rotation speed of the outer fan to be increased by a set fourth gradient until the unit operation high pressure after the rotation speed of the outer fan is increased is in the target high pressure range. And after the compressor frequency is initially set, if the high pressure of the unit exceeds the limit during initial detection, the unit high pressure is required to be regulated to be restored to the target high pressure range, and then the external fan rotating speed is reduced and regulated according to the mute control operation logic until the external fan rotating speed, which is closest to the upper limit of the target low pressure range, of the unit high pressure under a third gradient standard is obtained. The invention can enable the high pressure of the unit to be as close to the upper limit of the target pressure range as possible when the external fan runs at the finally determined rotating speed.
Optionally, the third gradient is greater than the first gradient. When the initial unit low pressure detection does not meet the target low pressure range, the unit target low pressure can be adjusted to the target low pressure range as soon as possible, and then the approaching adjustment of the target low pressure upper limit is realized by reducing the compressor frequency, so that the compressor frequency control adjustment efficiency can be improved.
Optionally, the fourth gradient is greater than or equal to the second gradient. The embodiment can improve the efficiency of the control and adjustment of the rotating speed of the external fan by the same adjustment of the frequency of the compressor.
Optionally, the detecting the low operating pressure of the unit includes: after a unit receives a mute operation instruction and enters a mute operation mode, detecting the low operating pressure of the unit after waiting for the set system stabilization time;
the detecting the unit operation high pressure after the compressor operates at the frequency comprises: and detecting the high-voltage running of the unit after the unit runs for a set stable time according to the frequency after the last reduction and adjustment. In this embodiment, when the low pressure or high pressure of the unit is detected before each adjustment, the system is made to operate stably and then to detect, so that the control strategy can be obtained more accurately and reliably.
Optionally, the step of successively controlling the compressor to reduce the frequency with the set first gradient until the unit operation low pressure after the reduction of the compressor frequency exceeds the upper limit of the target low pressure range, and controlling the compressor to operate according to the frequency after the last reduction adjustment includes:
s11, controlling the frequency of the compressor to be reduced according to the first gradient, judging whether the real-time running low pressure of the unit exceeds the upper limit of the target low pressure range after the set running stable time, if so, turning to step S12, and if not, turning to step S11;
s12, controlling the compressor to operate according to the frequency before the last reduction adjustment.
Alternatively, the first gradient described above may be selected to be 1Hz and the third gradient may be selected to be a conventional 4Hz.
Optionally, the step of gradually controlling the rotation speed of the external fan to decrease with the set second gradient until the unit operation high pressure after the rotation speed of the external fan decreases exceeds the upper limit of the target high pressure range, and controlling the external fan to operate according to the rotation speed after the adjustment of last decrease includes:
s21, controlling the rotation speed of the external fan to be reduced according to the third gradient, judging whether the real-time high-voltage operation of the unit exceeds the upper limit of the target high-voltage range after the set stable time of the unit operation, if so, turning to the step S22, and if not, turning to the step S21;
s22, controlling the external fan to operate according to the rotation speed before the last reduction and adjustment.
Optionally, considering that the rotation speed of the external fan is generally divided into different gear positions, in the present invention, the first gradient and the fourth gradient may be 1 gear respectively, that is, the rotation speed of the external fan is adjusted according to the gradient of 1 gear when the rotation speed of the external fan is increased and decreased each time. Considering the adjustment of higher efficiency when the high pressure of the unit initially exceeds the target pressure range, the number of the gears for increasing the rotating speed of the external fan each time can be set to be larger than the number of the gears for decreasing.
Optionally, the set stabilization time is 3 minutes, and the time range can be set according to the actual unit operation condition and experience.
In a second aspect, the present invention provides an air conditioner, which includes a compressor, a fan, and a controller for implementing the steps of the control method for the silent operation of the air conditioner according to the first aspect.
In a third aspect, the present invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method for silent operation of an air conditioner according to the first aspect.
Compared with the prior art, the invention has the beneficial effects that:
1) The operation frequency of the compressor is adjusted by comparing the unit operation low pressure with the upper limit of the target low pressure range, so that the compressor can operate at a frequency which can enable the unit low pressure to approach the upper limit of the target low pressure range, and the rotating speed of the external fan is adjusted by comparing the unit high pressure with the upper limit of the target low pressure range, so that the external fan can operate at a rotating speed which can enable the unit high pressure to approach the upper limit of the target low pressure range. The basic operation capability of the unit can be guaranteed to the greatest extent, the frequency of the compressor and the rotating speed of the external fan can be reduced as much as possible, and the silencing effect of the air conditioner external machine during operation is optimized.
Drawings
FIG. 1 is a logic diagram of the unit operation of a control method for the mute operation of a conventional air conditioner;
FIG. 2 is a flow chart of a method for controlling mute operation of an air conditioner according to the present invention in one embodiment;
fig. 3 is a flowchart illustrating a mute operation control method of an air conditioner according to another embodiment of the present invention.
Description of the embodiments
Referring to fig. 1, in a conventional mute operation control process of an air conditioner, an air conditioner compressor takes a low pressure as a control target, the output of the compressor is increased when the system low pressure is higher than the target, the output is reduced when the system low pressure is lower than the target, the rotation speed of an external fan takes a system high pressure as a control target, the rotation speed of the fan is increased when the system low pressure is higher than the target, and the rotation speed is reduced when the system low pressure is lower than the target. The prior art simply limits the highest running frequency of the compressor and the fan, and does not consider the influence of low pressure and high pressure of the system on the running of the unit, so that the running frequencies of the compressor and the external fan can be further limited, and the real extreme silence cannot be achieved.
The technical conception of the invention is as follows: and then, the rotation speed of the external fan is adjusted by taking the unit operation high pressure as a control target, so that the system operation high pressure is continuously near the upper limit of the target low pressure range, and the air conditioner is enabled to achieve near-extreme mute operation in a mute mode.
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.
Example 1
In this embodiment, a control method for silent operation of an air conditioner is described in fig. 2, where the frequency of a compressor is controlled by using a low pressure as a control target, the output of the compressor is increased when the system low pressure is higher than the target, the output is decreased when the system low pressure is lower than the target, the rotational speed of an external fan is controlled by using the system high pressure as the control target, the rotational speed of the fan is increased when the system low pressure is higher than the target, and the rotational speed is decreased when the system low pressure is lower than the target. Fig. 3 only shows the logical sequence of the method according to the present embodiment, and the steps shown or described may be performed in a different order than shown in fig. 1 in other possible embodiments of the invention without mutual conflict.
Specifically, the control method for the mute operation of the air conditioner in this embodiment includes:
when the unit is in a refrigeration mode, responding to receiving a mute operation instruction, and executing the following mute control operation;
detecting the running low pressure of the unit, and comparing the running low pressure with a preset target low pressure range:
if the unit operation low pressure is in the target low pressure range, gradually controlling the frequency reduction of the compressor according to a set first gradient until the unit operation low pressure after the frequency reduction of the compressor exceeds the upper limit of the target low pressure range, controlling the compressor to operate according to the frequency after the last reduction adjustment, and detecting the unit operation high pressure after the compressor operates at the frequency;
it should be noted that, compared to the compressor frequency adjustment gradient in the non-silent normal mode operation, the set first gradient is smaller than the compressor frequency adjustment gradient in the normal mode, so that the compressor frequency adjustment can be performed multiple times, and the unit operation low pressure can be more close to the upper limit of the target low pressure range. The compressor is operated according to the frequency after the last reduction adjustment, i.e. the compressor is controlled to increase according to the first gradient at the current operating frequency, and the person skilled in the art can choose to increase the compressor frequency according to a new gradient different from the first gradient according to the specific situation.
Comparing the unit operation high pressure with a preset target high pressure range:
and if the unit operation high pressure is in the target high pressure range, gradually controlling the rotation speed of the external fan to be reduced by a set second gradient until the unit operation high pressure after the rotation speed of the external fan is reduced exceeds the upper limit of the target high pressure range, and controlling the external fan to operate according to the rotation speed after the adjustment of the last reduction.
It should be noted that, compared with the gradient of the outer fan rotating speed adjustment in the non-silent normal mode operation, the set second gradient is smaller than the gradient of the outer fan rotating speed adjustment in the normal mode, so that the outer fan rotating speed adjustment can be performed for a plurality of times, and the unit operation high voltage can be more close to the upper limit of the target high voltage range. The external fan operates according to the frequency after the last reduction and adjustment, namely the external fan controls the external fan to increase the rotating speed according to the second gradient under the current operation gear, and the person skilled in the art can select to increase the rotating speed of the external fan according to a new gradient different from the second gradient according to specific conditions.
It is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of such features. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.
Example 2
The present embodiment is perfected on the basis of embodiment 1, and fig. 3 is a flow chart of a control method for the mute operation of the air conditioner of the present embodiment, specifically, with reference to fig. 2 and fig. 3, the method of the present embodiment includes the following steps:
step (1): the unit operates in a refrigerating mode;
step (2): judging whether the unit enters a mute mode, if so, executing the step (3); otherwise, returning to the step (1);
step (3): acquiring unit operation low pressure, judging whether the unit operation low pressure is smaller than or equal to the upper limit of a target low pressure range, and if yes, executing the step (4); otherwise, executing the step (5);
step (4): controlling the compressor frequency to be reduced with a set first gradient, and executing the step (6);
step (5): controlling the frequency of the compressor to be increased by a set third gradient, and returning to the step (3);
step (6): judging whether the unit operation low pressure is greater than the upper limit of the target low pressure range, if so, executing the step (7); otherwise, returning to the step (4);
step (7): controlling the compressor to run according to the frequency after the last reduction adjustment, and turning to the step (8);
step (8): acquiring the unit operation high pressure, judging whether the unit operation high pressure is smaller than or equal to the upper limit of the target pressure range, and if so, executing the step (9); otherwise, executing the step (10);
step (9): controlling the rotation speed of the outer fan to be reduced by a set second gradient, and executing the step (11);
step (10): controlling the rotation speed of the external fan to be increased by a set fourth gradient, and returning to the step (8);
step (11): judging whether the unit operation high pressure is greater than the upper limit of the target high pressure range, if so, executing the step (12); otherwise, returning to the step (9);
step (12): and controlling the outer fan to operate according to the rotation speed after the last reduction and adjustment.
It should be noted that, for the first gradient in the step (4) and the third gradient in the step (5), a person skilled in the art may choose to set different gradients according to practical factors such as the model of the compressor, the ambient temperature, etc., and preferably, the first gradient is smaller than the third gradient, so as to realize efficient mute control of the compressor in the case of low-pressure initial overrun of the unit. For the second gradient in the step (9) and the fourth gradient in the step (10), the person skilled in the art can select to set different gradients according to practical factors such as the model of the external fan, the ambient temperature and the like, and preferably the second gradient is smaller than the fourth gradient so as to realize high-efficiency mute control of the external fan under the condition of high-pressure initial overrun of the unit.
In the embodiment, the air conditioner enters a mute operation under the refrigeration mode operation, and after a preset period of time, the unit operation low pressure is measured; after the operation frequency of the compressor and the external fan is adjusted, the compressor and the external fan are operated for a preset period of time according to the current frequency, and then the low-pressure operation and the high-pressure operation of the unit are detected. The preset time can be set by a person skilled in the art according to practical situations, such as an air conditioner model, ambient temperature and air pressure, and other factors.
In step (7), the compressor is operated according to the frequency after the last reduction adjustment, that is, the compressor is controlled to increase according to the first gradient at the current operating frequency, and the person skilled in the art may choose to increase the compressor frequency according to a new gradient different from the first gradient according to the specific situation, or may maintain the current operating frequency. In the step (12), the external fan operates according to the frequency after the last reduction and adjustment, that is, the external fan controls the external fan to increase the rotation speed according to the second gradient in the current operation gear, and the person skilled in the art can choose to increase the rotation speed of the external fan according to a new gradient different from the second gradient according to specific conditions, and can also maintain the current rotation speed to operate.
The mute operation control method of the air conditioner of the present embodiment will be described below with an example.
Assuming a silence mode defined frequency of 65Hz, a target low pressure range of 6-9bar and a target high pressure range of 19-23 bar; according to the mute operation control logic under the existing air conditioner refrigeration mode, after the unit is stable according to the initial energy, if the frequency of the compressor is 60 Hz and the rotating speed of the external fan is 750r/min, the high-pressure value of the system is 21 bar and the low-pressure value is 9.3bar, the low-pressure compensation energy is required according to the unit operation at the moment: the compressor frequency is adjusted up by 4Hz, the low pressure is 7.5 bar after the operation is stable, the target low pressure requirement is met, the high pressure value is increased to 23.5 bar, and the rotating speed of the external fan is increased to 780r/min. After the operation is stable, the compressor frequency and the rotating speed of the external fan are actually reduced, and the real extreme silence cannot be achieved.
According to the mute operation control logic of the present invention, referring to fig. 1, there is the following procedure:
still assuming a silence mode defined frequency of 65Hz, a target low pressure range of 6-9bar and a target high pressure range of 19-23 bar;
in the refrigerating mode, a mute operation instruction is sent out through dial setting or other control modes, and the air conditioner controller receives the mute operation instruction and enters a mute mode to operate;
after the unit is stable according to the initial energy, the compressor frequency is 60 Hz, the rotating speed of an external fan is 750r/min, the high-pressure value of the system is 21 bar, the low-pressure value is 9.3bar, the low-pressure value exceeds the target low-pressure range, the compressor frequency is controlled to be adjusted up by 4Hz, after the unit is stable in operation, the low-pressure value of the unit is detected to be 7.5 bar and less than or equal to 9bar, the compressor frequency is controlled to be reduced by 1Hz to 63Hz, the low-pressure value of the unit after the unit is stable to be 8.6 bar and less than or equal to 9bar, the compressor frequency is continuously controlled to be reduced to 62Hz, the low-pressure value after the unit is stable to be 9.2 bar and more than 9bar, the compressor frequency is not controlled to be reduced, and the compressor frequency is controlled to return to the last operation state frequency of 63 Hz; after the operation is stable, detecting that the high operating pressure of the unit is 22.1 bar less than or equal to 23 bar and is in a target pressure range, controlling the rotating speed of the external fan to be reduced by one gear to 750r/min, controlling the high operating pressure of the unit to be less than or equal to 23 bar after the high operating pressure is stable and still in the target pressure range, continuously controlling the rotating speed of the external fan to be reduced by one gear to 720r/min, controlling the low operating pressure of the unit to be more than 23 bar after the high operating pressure is stable, and controlling the rotating speed of the external fan to be reduced without controlling the rotating speed of the external fan to return to the previous gear of 750r/min when the operating pressure of the external fan exceeds the target pressure range. After stable operation, the compressor frequency is 63Hz, the rotating speed of the external fan is 750r/min, the energy requirement is met, the low pressure of the unit and the high pressure of the unit are close to the upper limit of the target range, on the premise that the compressor frequency and the rotating speed of the external fan are reduced as much as possible, the overall noise of the operation of the external air conditioner is further reduced, and the operation is close to the extremely silent state.
Example 3
This embodiment describes an air conditioner including a compressor, a fan, and a controller for implementing the steps of the control method for the silent operation of the air conditioner as described in embodiment 1 or 2.
Example 4
This embodiment describes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of the silent operation of an air conditioner described in embodiment 1 or 2.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. The control method for the mute operation of the air conditioner is characterized by comprising the following steps:
when the unit is in a refrigeration mode, responding to receiving a mute operation instruction, and executing the following mute control operation;
detecting the running low pressure of the unit, and comparing the running low pressure with a preset target low pressure range:
if the unit operation low pressure is in the target low pressure range, gradually controlling the frequency reduction of the compressor according to a set first gradient until the unit operation low pressure after the frequency reduction of the compressor exceeds the upper limit of the target low pressure range, controlling the compressor to operate according to the frequency after the last reduction adjustment, and detecting the unit operation high pressure after the compressor operates at the frequency;
comparing the unit operation high pressure with a preset target high pressure range:
and if the unit operation high pressure is in the target high pressure range, gradually controlling the rotation speed of the external fan to be reduced by a set second gradient until the unit operation high pressure after the rotation speed of the external fan is reduced exceeds the upper limit of the target high pressure range, and controlling the external fan to operate according to the rotation speed after the adjustment of the last reduction.
2. The method for controlling the mute operation of an air conditioner according to claim 1, further comprising:
when comparing the detected unit operation low pressure with a preset target low pressure range, if the unit operation low pressure exceeds the upper limit of the target low pressure range, gradually controlling the compressor frequency to be increased by a set third gradient until the unit operation low pressure after the compressor frequency is increased is in the target low pressure range.
3. The control method for silent operation of an air conditioner according to claim 1 or 2, further comprising:
when comparing the detected unit operation high pressure with a preset target high pressure range, if the unit operation high pressure exceeds the upper limit of the target high pressure range, gradually controlling the rotation speed of the outer fan to be increased by a set fourth gradient until the unit operation high pressure after the rotation speed of the outer fan is increased is in the target high pressure range.
4. The method for controlling silent operation of air conditioner according to claim 2, wherein the third gradient is greater than the first gradient.
5. The control method for silent operation of air conditioner according to claim 3, wherein the fourth gradient is greater than or equal to the second gradient.
6. The method for controlling silent operation of an air conditioner according to claim 1, wherein,
the detecting unit operation low pressure includes: after the unit receives a mute operation instruction and enters a mute operation mode, after waiting for the set stable time of unit operation, detecting the low voltage of unit operation;
the detecting the unit operation high pressure after the compressor operates at the frequency comprises: and detecting the high-voltage running of the unit after the unit runs for a set stable time according to the frequency after the last reduction and adjustment.
7. The method for controlling silent operation of air conditioner according to claim 1, wherein said successively controlling the compressor frequency decrease with a set first gradient until the unit operation low pressure after the compressor frequency decrease exceeds the upper limit of the target low pressure range, controlling the compressor to operate according to the frequency after the last decrease adjustment, comprises:
s11, controlling the frequency of the compressor to be reduced according to the first gradient, judging whether the real-time running low pressure of the unit exceeds the upper limit of the target low pressure range after the set running stable time, if so, turning to step S12, and if not, turning to step S11;
s12, controlling the compressor to operate according to the frequency before the last reduction adjustment.
8. The method for controlling silent operation of air conditioner according to claim 1, wherein said successively controlling the rotation speed of the external fan with a set second gradient until the unit operation high pressure after the rotation speed of the external fan is reduced exceeds the upper limit of the target high pressure range, controlling the external fan to operate according to the rotation speed after the last reduction adjustment, comprises:
s21, controlling the rotation speed of the external fan to be reduced according to the third gradient, judging whether the real-time high-voltage operation of the unit exceeds the upper limit of the target high-voltage range after the set stable time of the unit operation, if so, turning to the step S22, and if not, turning to the step S21;
s22, controlling the external fan to operate according to the rotation speed before the last reduction and adjustment.
9. An air conditioner comprising a compressor, a fan and a controller for implementing the steps of the control method for silent operation of the air conditioner according to any one of claims 1 to 8.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements a control method for silent operation of an air conditioner according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311626749.2A CN117387186A (en) | 2023-11-30 | 2023-11-30 | Control method for mute operation of air conditioner, storage medium and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311626749.2A CN117387186A (en) | 2023-11-30 | 2023-11-30 | Control method for mute operation of air conditioner, storage medium and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117387186A true CN117387186A (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311626749.2A Pending CN117387186A (en) | 2023-11-30 | 2023-11-30 | Control method for mute operation of air conditioner, storage medium and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117387186A (en) |
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2023
- 2023-11-30 CN CN202311626749.2A patent/CN117387186A/en active Pending
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