CN117029259A - Method and device for controlling air conditioner, air conditioner and storage medium - Google Patents
Method and device for controlling air conditioner, air conditioner and storage medium Download PDFInfo
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- CN117029259A CN117029259A CN202311077882.7A CN202311077882A CN117029259A CN 117029259 A CN117029259 A CN 117029259A CN 202311077882 A CN202311077882 A CN 202311077882A CN 117029259 A CN117029259 A CN 117029259A
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- air conditioner
- supercooling
- expansion valve
- electronic expansion
- supercooling degree
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000003860 storage Methods 0.000 title claims abstract description 20
- 238000004781 supercooling Methods 0.000 claims abstract description 200
- 239000003507 refrigerant Substances 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000001965 increasing effect Effects 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 description 35
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of air conditioners, and discloses a method for controlling an air conditioner, wherein the air conditioner comprises the following steps: the refrigerant main circulation loop is provided with a main electronic expansion valve, an indoor heat exchange system and a gas-liquid separator; the plate heat exchanger is characterized in that a main flow path is connected between a main electronic expansion valve and an indoor heat exchange system, an inlet end of an auxiliary flow path is connected to an outlet end of the main flow path through a supercooling electronic expansion valve, and an outlet end of the auxiliary flow path is connected to an inlet end of a gas-liquid separator; the method comprises the following steps: obtaining the supercooling degree of the air conditioner; under the condition that the supercooling degree is smaller than the target supercooling degree, the current mute requirement is obtained; under the condition that the mute requirement is that mute is required, the processor controls the rotating speed of the outdoor fan to be kept below the set rotating speed; and controlling the supercooling electronic expansion valve to be opened. The control of the supercooling electronic expansion valve ensures supercooling degree, and the noise in the adjusting process is reduced by limiting the rotating speed of the outdoor fan. The application also discloses a device for controlling the air conditioner, the air conditioner and a storage medium.
Description
Technical Field
The present application relates to the field of air conditioning technology, and for example, to a method and apparatus for controlling an air conditioner, and a storage medium.
Background
The multi-split air conditioning system is applied to large-area building places such as office business buildings, large-scale commercial buildings, factory workshops and the like. Multiple indoor units in the multi-split air conditioning system are distributed in a large-area building, and long connecting pipes or ultra-long connecting pipes are required to be equipped. When the refrigerant flows through the long piping, the pressure loss is caused, so that the supercooling degree of the refrigerant before entering the indoor unit electronic expansion valve is insufficient, the refrigerating effect of the indoor unit is influenced, abnormal refrigerant flowing sound is possibly generated, and the user experience is influenced.
Disclosed in the related art is a method for controlling an air conditioner, including: when the air conditioner operates in a refrigeration mode, calculating the current supercooling degree; if the current supercooling degree is smaller than a preset lower limit threshold value, increasing a preset regulating rotating speed on the basis of the current rotating speed of the current external fan to obtain a first target rotating speed; and repeatedly executing the steps until the current supercooling degree belongs to a preset supercooling degree range.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
along with the improvement of the rotation speed of the outdoor fan, the noise caused by the operation of the outdoor fan is correspondingly increased, and the noise possibly causes trouble to the user, so that the user is uncomfortable.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a method, a device, an air conditioner and a storage medium for controlling the air conditioner, so that excessive noise generated in the adjusting process is avoided while the refrigerant entering an electronic expansion valve of an indoor unit is ensured to have enough supercooling degree.
In some embodiments, the air conditioner includes: an outdoor fan; the refrigerant main circulation loop comprises a compressor, an outdoor heat exchanger, a main electronic expansion valve, an indoor heat exchange system and a gas-liquid separator which are connected in sequence; the main flow passage of the plate heat exchanger is connected between the main electronic expansion valve and the indoor heat exchange system, the inlet end of the auxiliary flow passage of the plate heat exchanger is connected with the outlet end of the main flow passage through the supercooling electronic expansion valve, and the outlet end of the auxiliary flow passage is connected with the inlet end of the gas-liquid separator; the method comprises the following steps: obtaining the supercooling degree of the air conditioner; under the condition that the supercooling degree is smaller than the target supercooling degree, the current mute requirement is obtained; under the condition that the mute requirement is that mute is required, the processor controls the rotating speed of the outdoor fan to be kept below the set rotating speed; and controlling the supercooling electronic expansion valve to be opened.
Optionally, controlling the subcooling electronic expansion valve to open includes: controlling the supercooling electronic expansion valve to be opened to a first initial opening degree; monitoring the real-time supercooling degree of an air conditioner; and adjusting the opening of the supercooling electronic expansion valve according to the real-time supercooling degree.
Optionally, the method for determining the first initial opening degree includes: obtaining a difference value between the supercooling degree of the air conditioner and the target supercooling degree; a first initial opening is determined from the difference.
Optionally, determining the initial opening according to the difference includes: the larger the absolute value of the difference, the larger the initial opening degree.
Optionally, adjusting the opening of the supercooling electronic expansion valve according to the real-time supercooling degree includes: under the condition that the real-time supercooling degree is larger than or equal to the target supercooling degree, determining that the opening degree of the supercooling electronic expansion valve is unchanged; and increasing the opening degree of the supercooling electronic expansion valve under the condition that the real-time supercooling degree is smaller than the target supercooling degree.
Optionally, controlling the subcooling electronic expansion valve to increase the opening degree includes: obtaining a difference value between the supercooling degree of the air conditioner and the target supercooling degree; determining a first adjustment rate based on the difference; the subcooling electronic expansion valve is controlled to increase at a first modulation rate.
Optionally, determining the first adjustment rate from the difference comprises: the larger the absolute value of the difference, the larger the first adjustment rate is determined.
Optionally, after obtaining the current mute requirement, the method further comprises: and under the condition that the mute requirement is that mute is not needed, controlling the outdoor fan to increase the rotating speed until the real-time supercooling degree in the rotating speed increasing process reaches the target supercooling degree, or the rotating speed reaches the maximum rotating speed.
Optionally, after the rotation speed reaches the maximum rotation speed, the method further comprises: and controlling the supercooling electronic expansion valve to be opened.
Optionally, obtaining the current mute requirement includes: obtaining a mute period; under the condition that the current time is in a mute period, the processor determines that the current mute requirement is to be mute; in the event that the current time is not in the mute period, the processor determines that the current mute demand is such that no mute is required.
In some embodiments, the apparatus comprises: the air conditioner comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the method for controlling the air conditioner when the program instructions are executed.
In some embodiments, the air conditioner includes: the refrigerant main circulation loop comprises a compressor, an outdoor heat exchanger, a main electronic expansion valve, an indoor heat exchange system and a gas-liquid separator which are connected in sequence; the main flow path of the plate heat exchanger is connected between the main electronic expansion valve and the indoor heat exchange system; the inlet end of the auxiliary flow path of the plate heat exchanger is connected with the outlet end of the main flow path through the supercooling electronic expansion valve, and the outlet end of the auxiliary flow path is connected with the inlet end of the gas-liquid separator.
Optionally, the air conditioner further comprises: an air conditioner body; the above-described device for controlling an air conditioner is mounted to an air conditioner body.
In some embodiments, the storage medium stores program instructions that, when executed, perform the method for controlling an air conditioner described above.
The method, the device, the air conditioner and the storage medium for controlling the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
in the case that the supercooling degree of the air conditioner is smaller than the target supercooling degree, it is determined that there is a loss in the supercooling degree, and it is necessary to supplement the supercooling degree. At this time, the current mute requirement is obtained, if mute is required, the rotating speed of the outdoor fan is controlled to be kept below the set rotating speed, and the supercooling electronic expansion valve is controlled to be opened. Therefore, under the condition that the supercooling degree needs to be supplemented and the silencing is needed, the rotating speed of the outdoor fan is kept below the set rotating speed, so that noise caused by overhigh rotating speed of the outdoor fan is avoided, meanwhile, the supercooling electronic expansion valve is controlled to be opened, part of refrigerant enters the auxiliary flow path, and after throttling and depressurization effects of the supercooling electronic expansion valve, the refrigerant in the main flow path is supercooled, so that the supercooling degree is supplemented. Thus, the control of the supercooling electronic expansion valve ensures supercooling degree, and the limitation of the rotation speed of the outdoor fan reduces noise in the adjusting process.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 5 is a schematic view of an apparatus for controlling an air conditioner provided in an embodiment of the present disclosure;
fig. 6 is a schematic view of an air conditioner provided in an embodiment of the present disclosure.
Reference numerals:
10: a compressor; 20: an outdoor heat exchanger; 30: a main electronic expansion valve; 40: a plate heat exchanger; 41: supercooling electronic expansion valve; 50: an indoor heat exchange system; 60: a gas-liquid separator; 70: a four-way valve; 80: an outdoor fan; 90: a first temperature sensing device; 91: a first pressure sensing device; 92: a second pressure sensing device.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
As shown in connection with fig. 1, an embodiment of the present disclosure provides an air conditioner. The air conditioner includes a refrigerant circulation main circuit and a plate heat exchanger 40.
The main refrigerant circulation loop comprises a compressor 10, an outdoor heat exchanger 20, a main electronic expansion valve 30, an indoor heat exchange system 50 and a gas-liquid separator 60 which are connected in sequence. Wherein the outlet end of the gas-liquid separator 60 is connected to the inlet end of the compressor 10 to form a closed flow circuit.
The main refrigerant circulation circuit further includes a four-way valve 70 to switch the air conditioner into cooling and heating modes.
The plate heat exchanger 40 includes a housing and a main flow path and an auxiliary flow path provided in the housing. Wherein the main flow path of the plate heat exchanger 40 is connected between the main electronic expansion valve 30 and the indoor heat exchange system 50. The inlet end of the auxiliary flow path is connected to the outlet end of the main flow path through the supercooling electronic expansion valve 41, and the outlet end of the auxiliary flow path is connected to the inlet end of the gas-liquid separator 60. In this way, when the supercooling electronic expansion valve 41 is closed, the refrigerant flows in the refrigerant circulation main flow path, and does not enter the auxiliary flow path. When the supercooling electronic expansion valve 41 is opened, part of the refrigerant flowing through the main flow path enters the auxiliary flow path, and after passing through the supercooling electronic expansion valve 41, the refrigerant in the auxiliary flow path is throttled and depressurized, exchanges heat with the refrigerant in the main flow path, and realizes supercooling treatment of the refrigerant in the main flow path.
The indoor heat exchange system 50 includes a plurality of indoor units, each of which includes at least one group of indoor heat exchangers and an electronic expansion valve for controlling the flow of refrigerant into the indoor heat exchangers.
The air conditioner further includes: an outdoor fan 80, controlled to adjust the rotational speed.
Optionally, the air conditioner further comprises: the first temperature sensing device 90 is configured to detect a total liquid pipe temperature of the outdoor unit. The first temperature sensor is arranged in front of the indoor heat exchange system. More specifically between the plate heat exchanger and the indoor heat exchange system.
Optionally, the air conditioner further comprises: the first pressure sensing device 91 is configured to detect a high pressure. The first pressure sensor is disposed between the outdoor heat exchanger and the compressor. More specifically, the first pressure sensor is disposed proximate to a discharge port of the compressor.
Optionally, the air conditioner further comprises: a second pressure sensing device 92 configured to detect a low pressure. The second pressure sensor is arranged on the indoor heat exchange system. More specifically, the second pressure sensor is arranged at an inlet liquid pipe of an electronic expansion valve of the indoor unit farthest from the outdoor unit in the indoor heat exchange system.
The air conditioner further includes: a processor. The processor is configured to obtain a supercooling degree of the air conditioner, and to obtain a current mute demand in case the supercooling degree is less than a target supercooling degree. And under the condition that the mute requirement is that mute is required, controlling the rotating speed of the outdoor fan to be kept below the set rotating speed, and controlling the supercooling electronic expansion valve to be opened.
As shown in connection with fig. 2, an embodiment of the present disclosure provides a method for controlling an air conditioner, including:
s201, the processor obtains the supercooling degree of the air conditioner.
S202, under the condition that the supercooling degree is smaller than the target supercooling degree, the processor obtains the current mute requirement.
And S203, when the mute requirement is that mute is needed, the processor controls the rotating speed of the outdoor fan to be kept below the set rotating speed, and controls the supercooling electronic expansion valve to be opened.
Here, the set rotational speed may be measured by a test in advance, for example, by gradually increasing the rotational speed of the outdoor fan, detecting the volume in the room, and setting the rotational speed corresponding to the volume which is not audible to the user in the room or has little influence on the user in the room as the set rotational speed. Can be selected or adjusted according to the requirements of different users. Alternatively, the set rotational speed may be the maximum rotational speed during cooling or heating.
By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, under the condition that the supercooling degree of the air conditioner is smaller than the target supercooling degree, the supercooling degree is determined to be lost, and the supercooling degree needs to be supplemented. At this time, the current mute requirement is obtained, if mute is required, the rotating speed of the outdoor fan is controlled to be kept below the set rotating speed, and the supercooling electronic expansion valve is controlled to be opened. Therefore, under the condition that the supercooling degree needs to be supplemented and the silencing is needed, the rotating speed of the outdoor fan is kept below the set rotating speed, so that noise caused by overhigh rotating speed of the outdoor fan is avoided, meanwhile, the supercooling electronic expansion valve is controlled to be opened, part of refrigerant enters the auxiliary flow path, and after throttling and depressurization effects of the supercooling electronic expansion valve, the refrigerant in the main flow path is supercooled, so that the supercooling degree is supplemented. Thus, the control of the supercooling electronic expansion valve ensures supercooling degree, and the limitation of the rotation speed of the outdoor fan reduces noise in the adjusting process.
Optionally, the method for determining the target supercooling degree includes: under the conditions that the compressor is at the maximum operating frequency, the four-way valve is in refrigeration operation, the indoor fan is at the highest rotating speed, the outdoor fan is at the maximum rotating speed, the main electronic expansion valves are in the full-open state, and each electronic expansion valve in indoor heat exchange throttles according to the preset superheat degree, the processor obtains high pressure Pg detected by the first pressure sensor device and low pressure Py detected by the second pressure sensor, and determines the target supercooling degree according to the high pressure Pg and the low pressure Py. Wherein the processor determining the target supercooling degree according to the high pressure Pg and the low pressure Py comprises: the processor calculates Δp=pg-Py, calculates a temperature change Δt corresponding to Δp, and determines a target supercooling degree according to Δt.
Optionally, the processor determines the target supercooling degree from Δt, including the processor determining the target supercooling degree ta=Δt+k0. Wherein k0 is a preset supercooling degree allowance value.
The above process of determining the target supercooling degree may be tested when the air conditioner is powered on for the first time, and after determining the target supercooling degree, or determining the high pressure Pg detected by the first pressure sensor device and the low pressure Py detected by the second pressure sensor, the control logic of pressure detection is exited, and the air conditioner continues to operate according to the user's requirement, or enters a standby state and a shutdown state.
Optionally, the processor obtains a supercooling degree of the air conditioner, including: under the conditions that the compressor is started, the four-way valve is in a refrigerating state, the main electronic expansion valve is in a full-open state, and each electronic expansion valve in the indoor heat exchange system throttles according to a preset superheat degree, the processor obtains high-pressure Pg 'detected by the first pressure sensing device and total liquid pipe temperature Ty' of the outdoor unit detected by the first temperature sensing device, and the supercooling degree of the air conditioner is determined according to the high-pressure Pg 'and the total liquid pipe temperature Ty'.
Further, the processor determines the supercooling degree of the air conditioner according to the high pressure Pg 'and the total liquid pipe temperature Ty', and comprises: the processor determines the saturation temperature Tg 'corresponding to the high-pressure Pg', calculates the supercooling degree tw=tg '-Ty'.
Optionally, the processor obtains a current mute requirement, including: the processor obtains a mute period, and determines that the current mute requirement is to be mute under the condition that the current time is in the mute period; in the event that the current time is not in the mute period, the processor determines that the current mute demand is such that no mute is required. In this way, the mute requirement can be automatically determined. The mute period is, for example, 8:00 to 18:00.
optionally, the processor obtains a current mute requirement, including: the method comprises the steps that a processor obtains identity information of indoor personnel, and under the condition that the indoor personnel have target users, the processor determines that current mute requirements are needed to be muted; in the event that there is no target user in the personnel in the room, the processor determines that the current need for muting is not required. The target user is determined by user input, such as a user with high requirements on sound, such as an infant. Therefore, the mute requirement can be ensured to accurately meet the actual requirement of the user.
Optionally, the processor obtains a current mute requirement, including: the processor obtains the mute time period and the identity information of the indoor personnel, and determines the mute requirement according to the mute time period and the identity information of the indoor personnel.
Optionally, the processor determines the mute requirement according to the mute period and the identity information of the indoor personnel, including: in the case where the current time is in a mute period and there is a target user in the indoor person, the processor determines that the mute requirement is that mute is required. Alternatively, the processor determines that the mute requirement is that mute is required in the event that the current time is in a mute period or there is a target user in an indoor person.
In other embodiments, the current mute demand may be entered directly by the user via the input device.
Optionally, the processor controls the rotation speed of the outdoor fan to be maintained below a set rotation speed, including: and under the condition that the rotating speed of the current outdoor fan is lower than the set rotating speed, the processor controls the rotating speed of the outdoor fan to be increased to the set rotating speed. Therefore, on the premise of avoiding noise from affecting a user, the rotating speed of the outdoor fan is properly increased, so that the supercooling degree is improved.
As shown in connection with fig. 3, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:
s301, the processor obtains the supercooling degree of the air conditioner.
S302, under the condition that the supercooling degree is smaller than the target supercooling degree, the processor obtains the current mute requirement.
And S303, when the mute requirement is that the mute is required, the processor controls the rotating speed of the outdoor fan to be kept below the set rotating speed, and controls the supercooling electronic expansion valve to be opened to a first initial opening degree.
S304, the processor monitors the real-time supercooling degree of the air conditioner.
And S305, the processor adjusts the opening degree of the supercooling electronic expansion valve according to the real-time supercooling degree.
Therefore, the opening degree of the supercooling electronic expansion can be adjusted according to the change of the supercooling degree in the actual running process, so that the opening degree of the electronic expansion valve can better meet the current supercooling degree adjusting requirement.
Optionally, the determining manner of the first initial opening degree includes: the processor obtains a difference between the supercooling degree of the air conditioner and the target supercooling degree, and determines a first initial opening according to the difference.
Optionally, the processor determines the initial opening according to the difference value, including: the greater the absolute value of the difference, the greater the processor determines the first initial opening. The larger the difference between the supercooling degree and the target supercooling degree is, the larger the supercooling degree to be supplemented is, the first initial opening degree is increased, the supercooling degree can be supplemented faster, the adjusting process is shortened, and the influence on the refrigerating process is reduced.
Optionally, the processor adjusts the opening of the supercooling electronic expansion valve according to the real-time supercooling degree, including: and under the condition that the real-time supercooling degree is greater than or equal to the target supercooling degree, the processor determines that the opening degree of the supercooling electronic expansion valve is kept unchanged. And under the condition that the real-time supercooling degree is smaller than the target supercooling degree, the processor increases the opening degree of the supercooling electronic expansion valve.
Specifically, during a first time interval from the opening of the supercooling electronic expansion valve to the initial opening, monitoring the real-time supercooling degree and the adjusting process of the opening of the supercooling electronic expansion valve are performed. If the real-time supercooling degree reaches the target supercooling degree in the first time interval, the first initial opening degree can meet the current regulation requirement, and the opening degree of the supercooling electronic expansion valve is kept unchanged. If the real-time supercooling degree is always smaller than the target supercooling degree in the first time interval, the first initial opening degree cannot meet the current regulation requirement, and the opening degree of the supercooling electronic expansion valve should be increased. Therefore, the opening degree of the supercooling electronic expansion valve is favorably matched with the actual regulation requirement, and the supercooling degree requirement is met as soon as possible.
Optionally, the processor increases the opening degree of the supercooling electronic expansion valve, including: the processor obtains a difference between the supercooling degree of the air conditioner and the target supercooling degree, and determines a first adjustment rate according to the difference. The processor controls the subcooling electronic expansion valve to increase at a first adjustment rate.
Optionally, the processor determines the first adjustment rate based on the difference, including: the greater the absolute value of the difference, the greater the processor determines the first adjustment rate. The larger the absolute value of the difference value is, the higher the adjustment requirement on the supercooling degree is, and the first adjustment rate is increased at the moment, so that the opening of the supercooling electronic expansion valve can be adjusted to a proper opening more quickly.
As shown in connection with fig. 4, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:
s401, the processor obtains the supercooling degree of the air conditioner.
S402, the processor determines whether the supercooling degree of the air conditioner is less than the target supercooling degree.
If yes, go to step S403; if not, the process continues to step S401.
S403, the processor obtains the current mute requirement.
S404, the processor judges whether the current demand is to mute.
If yes, go to step S405; if not, go to step S406.
And S405, the processor controls the rotating speed of the outdoor fan to be kept below the set rotating speed, and controls the supercooling electronic expansion valve to be opened.
S406, the processor controls the rotation speed of the outdoor fan to be increased until the real-time supercooling degree in the rotation speed increasing process reaches the target supercooling degree, or the rotation speed reaches the maximum rotation speed.
By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, under the condition that the supercooling degree needs to be supplemented, the mute requirement is obtained, and different adjusting measures are selected according to the mute requirement. If mute is needed, the mute requirement is preferably met, the rotating speed of the outdoor fan is maintained at a set rotating speed, and the supercooling degree of the refrigerant is increased mainly by adjusting the supercooling electronic expansion valve. Under the condition that silence is not needed, the supercooling degree is increased preferentially by increasing the outdoor fan, so that unnecessary reduction of the refrigerant quantity in the heat exchange cycle is avoided, and the heat exchange efficiency is ensured. Therefore, in the process of guaranteeing the supercooling degree of the air conditioner, the mute requirement and the heat exchange efficiency are considered, and the user experience is better optimized.
Namely, monitoring the real-time supercooling degree in the process of controlling the rotating speed of the outdoor fan to be gradually increased. If the maximum rotating speed is not reached in the rotating speed increasing process and the real-time supercooling degree reaches the target supercooling degree, the rotating speed of the outdoor fan is not increased any more, the rotating speed at the moment is kept unchanged, and the operation is continued. If the rotational speed of the outdoor fan has reached the maximum rotational speed in the rotational speed increasing process, but the real-time supercooling degree has not reached the target supercooling degree, the rotational speed of the outdoor fan is maintained at the maximum rotational speed.
Optionally, the processor controls the rotation speed of the outdoor fan to increase, including: the processor controls the outdoor fan to gradually increase the rotating speed at a second adjusting rate.
The second regulation rate determining method comprises the following steps: the processor determines a second adjustment rate based on a difference between the supercooling degree of the air conditioner and the target supercooling degree. The supercooling degree of the air conditioner is the supercooling degree of the judgment condition that the trigger supercooling degree is smaller than the target supercooling degree. More specifically, the processor determines a second adjustment rate based on a difference between the supercooling degree of the air conditioner and the target supercooling degree, including: the greater the absolute value of the difference between the supercooling degree of the air conditioner and the target supercooling degree, the greater the processor determines the second adjustment rate. The larger the difference between the supercooling degree and the target supercooling degree is, the larger the supercooling degree adjustment requirement is, and the faster the rotating speed of the outdoor fan is increased at a faster speed, the faster the supercooling degree adjustment requirement can be met.
Optionally, after determining the second adjustment rate according to the difference between the supercooling degree of the air conditioner and the target supercooling degree, the processor further includes: the processor adjusts the second adjustment rate according to the real-time subcooling during the increase in rotational speed.
Optionally, the processor adjusts the second adjustment rate according to the real-time supercooling degree during the rotation speed increase, including: the processor calculates a difference between the real-time subcooling degree and the target subcooling degree, and decreases the second adjustment rate as the difference decreases. Like this, carry out further regulation to outdoor fan's rotational speed adjustment process according to real-time supercooling degree to guarantee outdoor fan's rotational speed is unanimous with real-time supercooling degree regulation demand, avoid outdoor fan rotational speed to increase in speed too fast, lead to the rotational speed too high.
Optionally, after the rotation speed reaches the maximum rotation speed, the method for controlling the air conditioner further includes: the processor controls the supercooling electronic expansion valve to open. Therefore, part of the refrigerant enters the auxiliary flow path of the plate heat exchanger to supercool the main flow path, so that the supercooling degree of the refrigerant is increased.
Optionally, the processor controls the subcooling electronic expansion valve to open, including: and the processor controls the supercooling electronic expansion valve to be opened to a second initial opening degree, and monitors the real-time supercooling degree of the air conditioner. And the processor adjusts the opening of the supercooling electronic expansion valve according to the real-time supercooling degree.
Wherein the second initial opening is smaller than the first initial opening. Because the outdoor fan is at the maximum rotating speed at this time, the smaller opening degree can meet the adjustment requirement of the supercooling degree, and the smaller second initial opening degree can avoid overlarge value.
Wherein the second initial opening is determined according to a difference between the real-time supercooling degree and the target supercooling degree. The larger the difference between the two, the larger the second initial opening degree.
Optionally, the processor adjusts the opening of the supercooling electronic expansion valve according to the real-time supercooling degree, including: the processor controls the supercooling electronic expansion valve to increase the opening degree at a third adjustment rate. Wherein the third tuning frequency is less than the first tuning frequency.
Optionally, the processor adjusts the opening of the supercooling electronic expansion valve according to the real-time supercooling degree, including: and under the condition that the real-time supercooling degree is smaller than the target supercooling degree, the processor controls the supercooling electronic expansion valve to keep the current opening unchanged.
As shown in connection with fig. 5, an embodiment of the present disclosure provides an apparatus 200 for controlling an air conditioner, including a processor (processor) 50 and a memory (memory) 51. Optionally, the apparatus may also include a communication interface (Communication Interface) 52 and a bus 53. The processor 50, the communication interface 52, and the memory 51 may communicate with each other via a bus 53. Communication interface 52 may be used for information transfer. The processor 50 may call logic instructions in the memory 51 to perform the method for controlling an air conditioner of the above-described embodiment.
Further, the logic instructions in the memory 51 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 51 is a computer readable storage medium that can be used to store a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 50 executes functional applications and data processing by executing program instructions/modules stored in the memory 51, i.e., implements the method for controlling an air conditioner in the above-described embodiment.
The memory 51 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 51 may include a high-speed random access memory, and may also include a nonvolatile memory.
As shown in connection with fig. 6, an embodiment of the present disclosure provides an air conditioner 100, including: an air conditioner body, and the above-described device 200 for controlling an air conditioner. The apparatus 200 for controlling an air conditioner is installed at an air conditioner body. The mounting relationships described herein are not limited to placement within a product, but include mounting connections to other components of a product, including but not limited to physical, electrical, or signal transmission connections, etc. Those skilled in the art will appreciate that the apparatus 200 for controlling an air conditioner may be adapted to a viable product body, thereby achieving other viable embodiments.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for controlling an air conditioner, the air conditioner comprising: an outdoor fan; the refrigerant main circulation loop comprises a compressor, an outdoor heat exchanger, a main electronic expansion valve, an indoor heat exchange system and a gas-liquid separator which are connected in sequence; the air conditioner is characterized by further comprising: the main flow passage of the plate heat exchanger is connected between the main electronic expansion valve and the indoor heat exchange system, the inlet end of the auxiliary flow passage of the plate heat exchanger is connected with the outlet end of the main flow passage through the supercooling electronic expansion valve, and the outlet end of the auxiliary flow passage is connected with the inlet end of the gas-liquid separator; the method comprises the following steps:
obtaining the supercooling degree of the air conditioner;
under the condition that the supercooling degree is smaller than the target supercooling degree, the current mute requirement is obtained;
under the condition that the mute requirement is that mute is required, the processor controls the rotating speed of the outdoor fan to be kept below the set rotating speed; and controlling the supercooling electronic expansion valve to be opened.
2. The method of claim 1, wherein controlling the subcooling electronic expansion valve to open comprises:
controlling the supercooling electronic expansion valve to be opened to a first initial opening degree;
monitoring the real-time supercooling degree of an air conditioner;
and adjusting the opening of the supercooling electronic expansion valve according to the real-time supercooling degree.
3. The method of claim 1, wherein the method for determining the first initial opening degree comprises:
obtaining a difference value between the supercooling degree of the air conditioner and the target supercooling degree;
and determining a first initial opening according to the difference value.
4. The method of claim 2, wherein adjusting the opening of the subcooling electronic expansion valve based on the real-time subcooling comprises:
under the condition that the real-time supercooling degree is larger than or equal to the target supercooling degree, determining that the opening degree of the supercooling electronic expansion valve is unchanged;
and increasing the opening degree of the supercooling electronic expansion valve under the condition that the real-time supercooling degree is smaller than the target supercooling degree.
5. The method according to any one of claims 1 to 4, wherein after obtaining the current mute demand, the method further comprises:
and under the condition that the mute requirement is that mute is not needed, controlling the outdoor fan to increase the rotating speed until the real-time supercooling degree in the rotating speed increasing process reaches the target supercooling degree, or the rotating speed reaches the maximum rotating speed.
6. The method according to any one of claims 1 to 4, wherein obtaining the current muting demand comprises:
obtaining a mute period;
under the condition that the current time is in a mute period, the processor determines that the current mute requirement is to be mute;
in the event that the current time is not in the mute period, the processor determines that the current mute demand is such that no mute is required.
7. An apparatus for controlling an air conditioner comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling an air conditioner according to any one of claims 1 to 6 when the program instructions are run.
8. An air conditioner, comprising:
the refrigerant main circulation loop comprises a compressor, an outdoor heat exchanger, a main electronic expansion valve, an indoor heat exchange system and a gas-liquid separator which are connected in sequence;
the main flow path of the plate heat exchanger is connected between the main electronic expansion valve and the indoor heat exchange system; the inlet end of the auxiliary flow path of the plate heat exchanger is connected to the outlet end of the main flow path through a supercooling electronic expansion valve, and the outlet end of the auxiliary flow path is connected to the inlet end of the gas-liquid separator.
9. The air conditioner of claim 8, further comprising:
an air conditioner body;
the apparatus for controlling an air conditioner as set forth in claim 7, mounted to the air conditioner body.
10. A storage medium storing program instructions which, when executed, perform the method for controlling an air conditioner according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311077882.7A CN117029259A (en) | 2023-08-24 | 2023-08-24 | Method and device for controlling air conditioner, air conditioner and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311077882.7A CN117029259A (en) | 2023-08-24 | 2023-08-24 | Method and device for controlling air conditioner, air conditioner and storage medium |
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| CN202311077882.7A Pending CN117029259A (en) | 2023-08-24 | 2023-08-24 | Method and device for controlling air conditioner, air conditioner and storage medium |
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| CN (1) | CN117029259A (en) |
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- 2023-08-24 CN CN202311077882.7A patent/CN117029259A/en active Pending
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