CN115479354B - Air conditioner control method and device, air conditioner and storage medium - Google Patents
Air conditioner control method and device, air conditioner and storage medium Download PDFInfo
- Publication number
- CN115479354B CN115479354B CN202211274207.9A CN202211274207A CN115479354B CN 115479354 B CN115479354 B CN 115479354B CN 202211274207 A CN202211274207 A CN 202211274207A CN 115479354 B CN115479354 B CN 115479354B
- Authority
- CN
- China
- Prior art keywords
- temperature
- refrigerant
- current
- air conditioner
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000003507 refrigerant Substances 0.000 claims abstract description 172
- 239000011555 saturated liquid Substances 0.000 claims abstract description 62
- 238000010586 diagram Methods 0.000 claims description 29
- 238000004590 computer program Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 abstract description 57
- 238000004781 supercooling Methods 0.000 abstract description 21
- 230000008859 change Effects 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 7
- 239000013526 supercooled liquid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000005514 two-phase flow Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner control method and device, an air conditioner and a storage medium, and relates to the technical field of air conditioners. Wherein the method comprises the following steps: acquiring the current temperature and the current pressure of the refrigerant after the refrigerant is throttled; determining a saturated liquid temperature of the refrigerant based on the current pressure of the refrigerant; and if the current temperature of the refrigerant is detected to be higher than the saturated liquid temperature, controlling an outdoor fan to increase the rotating speed and/or controlling a compressor to increase the operating frequency. According to the invention, the outdoor fan is controlled to increase the rotating speed and the compressor is controlled to increase the operating frequency according to the current temperature of the refrigerant and the saturated liquid temperature of the refrigerant, so that the heat exchange capacity of the outdoor unit is increased, the temperature of the refrigerant outside the outdoor unit is reduced, the supercooling degree of the refrigerant is increased, the refrigerant falls into a supercooling region after being throttled, namely, the refrigerant is ensured to be still liquid after being throttled, the liquid flow sound generated due to the gas-liquid two-phase state is avoided, and the noise of the liquid flow sound is fundamentally eliminated.
Description
Technical Field
The embodiment of the invention relates to the technical field of air conditioners, in particular to an air conditioner control method and device, an air conditioner and a storage medium.
Background
The air conditioner may generate various noises, such as noise of an indoor fan, noise of an outdoor fan, and noise of a compressor, when in operation, and the generation of the noises reduces the use experience of a user. Among the various noises generated when the air conditioner is operated, the noise generated when the refrigerant flows is also included, and the air conditioner is realized in a refrigerating or heating process by the circulation of the refrigerant in the pipe. While the flow of refrigerant in the tube is a relatively complex process, particularly through the throttling element, friction reduces the pressure of the liquid during the flow of refrigerant and the subcooled liquid is converted to saturated liquid. As the pressure is further reduced, the liquid overheat, the liquid refrigerant starts to become bubbles, and after the bubbles break, a "speech" stream sound is generated. Because of the pressure change and the flow dispersion process, the air conditioner generates discontinuous 'speech' liquid flow sound, and the noise seriously affects the quality of the air conditioner, so that the user complains are often caused. In the prior art, the problem of liquid flow sound is usually solved by adjusting the opening degree of the throttling component, however, the flow of the refrigerant is suddenly changed in the mode, the temperature adjustment of the indoor unit is greatly influenced, and the comfort level of a user is influenced.
Disclosure of Invention
The embodiment of the invention provides a control method and device of an air conditioner, the air conditioner and a storage medium, and aims to solve the problem that liquid flow sound is generated when refrigerant of the existing air conditioner passes through a throttling component.
In a first aspect, an embodiment of the present invention provides a method for controlling an air conditioner, including: acquiring the current temperature and the current pressure of the refrigerant after the refrigerant is throttled; determining a saturated liquid temperature of the refrigerant based on the current pressure of the refrigerant; and if the current temperature of the refrigerant is detected to be higher than the saturated liquid temperature, controlling an outdoor fan to increase the rotating speed and/or controlling a compressor to increase the operating frequency.
In a second aspect, an embodiment of the present invention further provides an air conditioner, including an indoor unit and an outdoor unit connected to the indoor unit through a pipe, where the outdoor unit includes a throttling device, a temperature sensor and a pressure sensor, the temperature sensor and the pressure sensor are disposed at a position in the pipe where the throttling device flows out of a refrigerant, the temperature sensor is used to obtain a current temperature of the refrigerant after throttling, and the pressure sensor is used to obtain a current pressure of the refrigerant after throttling; wherein, the air conditioner executes the control method.
In a third aspect, an embodiment of the present invention further provides an air conditioner control device, including: an acquisition unit configured to acquire a current temperature and a current pressure of a refrigerant after the refrigerant flows through a throttling device; a determining unit configured to determine a saturated liquid temperature of the refrigerant according to the current pressure of the refrigerant; and the control unit is used for controlling the outdoor fan to increase the rotating speed and/or controlling the compressor to increase the operating frequency if the current temperature of the refrigerant is detected to be higher than the saturated liquid temperature.
In a fourth aspect, an embodiment of the present invention further provides an air conditioner, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the above method when executing the computer program.
In a fifth aspect, embodiments of the present invention also provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the above method.
The embodiment of the invention provides an air conditioner control method and device, an air conditioner and a storage medium. Wherein the method comprises the following steps: acquiring the current temperature and the current pressure of the refrigerant after the refrigerant is throttled; determining a saturated liquid temperature of the refrigerant based on the current pressure of the refrigerant; and if the current temperature of the refrigerant is detected to be higher than the saturated liquid temperature, controlling an outdoor fan to increase the rotating speed and/or controlling a compressor to increase the operating frequency. According to the technical scheme, the outdoor fan is controlled to increase the rotating speed and the compressor is controlled to increase the operating frequency according to the current temperature of the refrigerant and the saturated liquid temperature of the refrigerant, so that the heat exchange capacity of the outdoor unit is increased, the temperature of the refrigerant outside the outdoor unit is reduced, the supercooling degree of the refrigerant is increased, the refrigerant is throttled and falls into a supercooling region, namely, the refrigerant is ensured to be still in a liquid state after being throttled, liquid flow sound generated due to a gas-liquid two-phase state is avoided, the noise of the liquid flow sound is fundamentally eliminated, and the comfort of a user is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an air conditioner according to an embodiment of the present invention;
Fig. 2 is a schematic flow chart of a control method of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a saturation state diagram of a refrigerant;
fig. 4 is a schematic sub-flowchart of a control method of an air conditioner according to an embodiment of the present invention;
Fig. 5 is a pressure enthalpy diagram of a refrigerant;
Fig. 6 is a schematic sub-flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 7 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention;
fig. 8 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention;
Fig. 9 is a flowchart of a control method of an air conditioner according to still another embodiment of the present invention;
FIG. 10 is a schematic diagram of control logic of an air conditioner control method according to an embodiment of the present invention;
Fig. 11 is a schematic block diagram of an air conditioner control device according to an embodiment of the present invention; and
Fig. 12 is a schematic block diagram of an air conditioner according to an embodiment of the present invention;
reference numerals:
1. An evaporator; 2. an indoor fan; 3. a temperature sensor; 4. a pressure sensor; 5. a throttle device; 6. an outdoor fan; 7. a condenser; 8. a compressor; 9. and a four-way valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Referring to fig. 1, fig. 1 is a schematic diagram of an air conditioner according to an embodiment of the invention. As shown in fig. 1, the air conditioner includes: the air conditioner comprises an evaporator 1, an indoor fan 2, a temperature sensor 3, a pressure sensor 4, a throttling device 5, an outdoor fan 6, a condenser 7, a compressor 8 and a four-way valve 9, wherein the evaporator 1 and the indoor fan 2 are arranged on one side of an indoor unit, the temperature sensor 3, the pressure sensor 4, the throttling device 5, the outdoor fan 6, the condenser 7, the compressor 8 and the four-way valve 9 are arranged on one side of an outdoor unit, the indoor unit and the indoor unit are connected through a pipeline, the outdoor unit comprises the throttling device 5, the temperature sensor 3 and the pressure sensor 4 are arranged in the pipeline, the throttling device 5 flows out of a refrigerant, the temperature sensor 3 is used for acquiring the current temperature of the throttled refrigerant, and the pressure sensor 4 is used for acquiring the current pressure of the throttled refrigerant. After the temperature sensor 3 and the pressure sensor 4 are arranged at the throttle device 5, the air conditioner can detect the current pressure P and the current temperature T of the throttled refrigerant in real time. The air conditioner executes the following control method, by which the air conditioner can monitor the current pressure and the current temperature of the throttled refrigerant in real time, calculate the saturated liquid temperature corresponding to the current refrigerant pressure through the current pressure, and adjust the frequency of the compressor 8 and the rotating speed of the inner fan and the outer fan in a linkage way to improve the supercooling degree of the refrigerant at one side of the outdoor unit, so that the refrigerant at the outdoor side still has a certain supercooling degree after passing through the throttling device 5, namely, the refrigerant is ensured to be still in a liquid state after passing through the throttling device 5, and the liquid flow sound caused by the gas-liquid two-phase state is avoided.
Fig. 2 is a flow chart of a control method of an air conditioner according to an embodiment of the present invention. As shown in fig. 2, the method includes the following steps S110 to S130.
S110, acquiring the current temperature and the current pressure of the refrigerant after the refrigerant is throttled.
In the present embodiment, the temperature sensor 3 and the pressure sensor 4 are provided after the throttle device 5, and the temperature and the pressure of the refrigerant after flowing through the throttle device 5 are collected by the temperature sensor 3 and the pressure sensor 4. The temperature sensor 3 and the pressure sensor 4 of the present embodiment are collected in real time, so that the current temperature and the current pressure of the throttled refrigerant can be monitored in real time.
S120, determining the saturated liquid temperature of the refrigerant according to the current pressure of the refrigerant.
In order to facilitate understanding of the change in the gas-liquid state of the refrigerant during the flow of the refrigerant in the tube, the theory of the saturated state of the refrigerant, which is the state where the liquid and the gas are in dynamic equilibrium, is explained first. The liquid and gas in a saturated state are referred to as saturated liquid and saturated gas, respectively. At the moment, the gas and liquid temperatures are the same, and when the saturation temperature is fixed, the saturation pressure is also fixed; conversely, when the saturation pressure is constant, the saturation temperature is also constant. The temperature increases, the gasification speed increases, the space gas density increases, and dynamic equilibrium is re-established. A certain saturation temperature of a substance must correspond to a certain saturation pressure. Next, the state of the refrigerant at different temperatures and pressures will be explained with reference to fig. 3. The state of the refrigerant mainly comprises a two-phase flow area, a metastable state liquid area and a supercooled liquid area, wherein the two-phase flow area is that the refrigerant flows in a pipeline in a liquid state and a gaseous state mixed state; metastable liquid, namely refrigerant is in critical states of supercooled liquid and two phases, the pressure of the refrigerant slightly fluctuates to become two phases, and hidden danger of liquid flow sound is generated; the supercooled liquid region, i.e., the refrigerant temperature, is below the saturated liquid temperature. When the refrigerant is in a two-phase flow area, the refrigerant is in a gas-liquid mixed state, and liquid flow sound of the 'fringing sound' is generated at the moment; when the refrigerant is in a metastable state liquid region, the refrigerant is in a liquid state but is in a critical state, and the state of the refrigerant is unstable and is easy to be converted into gas so as to generate liquid flow sound of a' voice; when the refrigerant is in the supercooled liquid region, the refrigerant is in a liquid state, so that liquid flow sound generated by a gas-liquid two-phase state can be avoided. Therefore, the inventive concept of this embodiment is to ensure that the refrigerant still has a certain supercooling degree after throttling without affecting the comfort of indoor users, so that the refrigerant is in a supercooled liquid region, thereby fundamentally solving the problem of liquid flow sound. Specifically, since the pressure and the temperature of the substance have a corresponding relationship in the saturated state, the present embodiment obtains the current pressure of the refrigerant after throttling, and further obtains the saturated liquid temperature of the refrigerant corresponding to the current pressure according to the current pressure. The refrigerant can be placed in the supercooled region by controlling the respective components of the air conditioner based on the current saturated liquid temperature of the refrigerant, thereby solving the problem of the liquid flow sound.
In one embodiment, referring to fig. 4, the step S120 includes: S121-S122.
S121, acquiring a pressure enthalpy diagram corresponding to the refrigerant;
s122, determining the saturated liquid temperature corresponding to the current pressure of the refrigerant according to the pressure enthalpy chart.
In this embodiment, the pressure-enthalpy diagram (lgp-h diagram) refers to a graph of pressure and enthalpy, and the pressure-enthalpy diagram has absolute pressure as ordinate and enthalpy as abscissa. Pressure enthalpy diagrams are important tools for analyzing vapor compression refrigeration cycles, and are commonly used for refrigeration cycle design, calculation, and analysis. Referring to fig. 5, the manufacturer presets a pressure-enthalpy diagram of the relevant refrigerant in the main program before leaving the factory, and the main program can obtain the saturated liquid temperature Tb corresponding to the pressure of the current refrigerant through the pressure-enthalpy diagram, that is, can obtain the corresponding saturated liquid temperature by knowing the pressure of the refrigerant.
In other embodiments, the saturated liquid temperature of the refrigerant may be a preset pressure-enthalpy correspondence table determined by a refrigerant pressure-enthalpy diagram, and the saturated gas temperature critical value and the saturated liquid temperature critical value of the refrigerant at different pressures are recorded. And directly obtaining the saturated liquid temperature corresponding to the current pressure of the refrigerant by inquiring the pressure-enthalpy corresponding table.
In one embodiment, referring to fig. 6, the step S122 includes: s1221 to S1222.
S1221, determining a temperature value corresponding to the current pressure of the refrigerant according to the pressure enthalpy diagram;
s1222, calculating the saturated liquid temperature according to the temperature value and a preset allowance.
In this embodiment, according to the theory of the saturated state of the substance, when the substance is in the saturated liquid, the temperature is slightly raised, and the liquid refrigerant evaporates into gas, so that the liquid flow sound is generated. Therefore, in order to ensure that the refrigerant is not in a critical state, but can be completely in the supercooling region, and ensure the stability of the liquid state, a certain margin is left on the basis of the original saturated liquid temperature, namely, the saturated liquid temperature is reduced a little. In short, the saturated liquid temperature is reduced by the remaining margin, so that all components of the air conditioner adjust the operation parameters in advance, rather than starting to adjust the operation parameters when the refrigerant reaches the saturated liquid temperature. Specifically, a temperature value Tb corresponding to the current pressure of the refrigerant is first determined according to a pressure enthalpy chart, where Tb is a basic value of the original saturated temperature, and therefore, the preset margin in this embodiment is 1 ℃, and the final saturated liquid temperature is determined to be Tb-1 by calculating according to Tb and the preset margin, so that the throttled refrigerant is not in a critical state but in a supercooling region, and no liquid flow sound is ensured. It will of course be appreciated that the preset margin need not be 1, but may be other values, e.g. a, the saturated liquid temperature being Tb-a, a > 0.
And S130, if the current temperature of the refrigerant is detected to be greater than the saturated liquid temperature, controlling the outdoor fan 6 to increase the rotating speed and/or controlling the compressor 8 to increase the operating frequency.
In this embodiment, after obtaining the saturated liquid temperature of the refrigerant, determining whether the current temperature of the refrigerant is greater than the saturated liquid temperature, if the current temperature of the refrigerant is greater than the saturated liquid temperature, it is indicated that the refrigerant is likely to be in a two-phase region at this time, and the refrigerant is in a gas-liquid mixed state at this time, so that a liquid flow sound of "fringing" is generated, and it is necessary to adjust the operation parameters of each component of the air conditioner to make the refrigerant have a certain supercooling degree; if the current temperature of the refrigerant is smaller than the saturated liquid temperature, the refrigerant is in a supercooling zone at the moment, the refrigerant is in a liquid state at the moment, no liquid flow sound is generated, and the operation parameters of all parts of the air conditioner are not required to be adjusted.
In the prior art, the problem of liquid flow sound is usually solved by adjusting the opening degree of the throttling component, however, the flow of the refrigerant is suddenly changed in the mode, the temperature adjustment of the indoor unit is greatly influenced, and the comfort level of a user is influenced. In order to avoid the sudden change of indoor temperature caused by the sudden change of the refrigerant flow, the embodiment adopts a mode of adjusting the operation parameters of the outdoor fan 6 and the compressor 8 to reduce the temperature of the refrigerant at the outdoor side, replaces the mode of adjusting the opening of the throttling component, does not change the flow of the refrigerant, and adopts a new control mode to solve the problem of liquid flow sound. Specifically, in this embodiment, the rotation speed of the outdoor fan 6 and/or the operation frequency of the compressor 8 are/is controlled to be increased, where the rotation speed of the outdoor fan 6 may be controlled to be increased, the operation frequency of the compressor 8 may be controlled to be increased, or the rotation speed of the outdoor fan 6 and the operation frequency of the compressor 8 may be controlled to be increased simultaneously.
As an example, with continued reference to fig. 5, when the current temperature of the refrigerant is greater than the saturated liquid temperature, i.e., T > Tb-1, it is indicated that the refrigerant is throttled by the throttling device 5 and then is in the point 4', i.e., the two-phase region, and the refrigerant is in the gas-liquid two-phase state, at this time, the rotation speed of the outdoor fan 6 is increased at a speed of 50RPM/min, and the frequency of the compressor 8 is increased at 2Hz/min, so as to increase the heat exchange capacity of the outdoor unit, reduce the temperature of the outdoor side refrigerant, thereby increasing the supercooling degree of the refrigerant, and make the refrigerant pass through the point 4', i.e., fall in the supercooling region after being throttled, so as to prevent the occurrence of liquid flow sound.
In an embodiment, referring to fig. 7, the air conditioner control method further includes the steps of: S141-S142.
S141, judging whether the current temperature of the refrigerant is less than the saturated liquid temperature;
and S142, if the current temperature of the refrigerant is smaller than the saturated liquid temperature, controlling the outdoor fan 6 to stop increasing the rotating speed and/or controlling the compressor 8 to stop increasing the operating frequency.
In this embodiment, after the rotation speed of the outdoor fan 6 is controlled to be increased and the operation frequency of the compressor 8 is controlled to be increased, whether the current temperature of the refrigerant is smaller than the saturated liquid temperature is continuously judged, if the current temperature of the refrigerant is smaller than the saturated liquid temperature, which means that the refrigerant is already in the supercooling region at this time, no liquid flow sound is generated, and the rotation speed of the outdoor fan 6 is not required to be continuously increased and the operation frequency of the compressor 8 is not required to be increased, then the rotation speed of the outdoor fan 6 is controlled to be stopped and the operation frequency of the compressor 8 is controlled to be stopped, that is, when T is less than or equal to Tb-1, the operation is stopped by adjusting the frequency of the compressor 8 and the rotation speed of the outdoor fan, and further, the overall heat exchange capacity of the air conditioner is prevented from being increased due to the frequency of the outdoor fan 6 and the indoor temperature is further changed, so that the comfort experience of a user is reduced. That is, in order to avoid the generation of the liquid flow sound, the operation parameters of the outdoor fan 6 and the compressor 8 are adjusted until the refrigerant returns to the supercooling region, so that the rotation speed of the fan and the frequency of the compressor 8 are prevented from being continuously increased to influence the indoor temperature, and the comfort of the user is ensured.
In an embodiment, referring to fig. 8, the air conditioner control method further includes the steps of: S151-S153.
S151, acquiring indoor environment temperature and target set temperature;
s152, judging whether the temperature difference between the indoor environment temperature and the target set temperature is larger than a first preset temperature difference;
And S153, if the temperature difference between the indoor environment temperature and the target set temperature is larger than a first preset temperature difference, controlling the indoor fan 2 to reduce the rotating speed.
In this embodiment, in order to avoid the increase of the overall heat exchange capacity of the air conditioner due to the frequency increase of the outdoor compressor 8 and the increase of the rotation speed of the outdoor fan 6, and further the change of the indoor temperature causes the reduction of the user comfort experience, the present embodiment also adopts other control modes to solve. Specifically, first, a temperature set by the user (target set temperature) and an indoor environment temperature, for example, 26 ° and 27 ° are obtained. And determining the temperature difference between the acquired indoor environment temperature and the target set temperature according to the acquired indoor environment temperature, wherein the temperature difference is 1 degree in the previous example. The first preset temperature difference is preset, for example, the first preset temperature difference is 2 °. Judging whether the temperature difference between the indoor environment temperature and the target set temperature exceeds a first preset temperature difference, if so, indicating that the operation parameters of the air conditioner adjusted at the outdoor side are excessive, namely, the outdoor side exchanges heat too much, and if the operation parameters of the air conditioner adjusted at the outdoor side are reduced, a certain supercooling degree cannot be ensured, and the possibility of liquid flow sound generation exists. Therefore, in order to avoid generating liquid flow sound and avoiding excessive influence on indoor temperature, the embodiment adopts a mode of controlling the rotating speed of the indoor fan 2 to solve, namely, controlling the indoor fan 2 to reduce the rotating speed and the heat exchange amount of the indoor unit, so that the indoor environment temperature is restored to be consistent with the target set temperature, thereby not only ensuring that the liquid flow sound is not generated, but also not influencing the indoor environment temperature, and ensuring the comfort of use of users. For example, if the indoor environment temperature and the target set temperature differ by more than 2 ℃, the human body is easily caused to feel cold or hot, so when Ts (set temperature) -Tn (indoor temperature) > 2 ℃, the indoor fan 2 is reduced at a speed of 50RPM/min, thereby reducing the heat exchange amount of the indoor unit and ensuring the comfort of the user.
In an embodiment, referring to fig. 9, the air conditioner control method further includes the steps of: S154-S155.
S154, judging whether the temperature difference between the indoor environment temperature and the target set temperature is smaller than a second preset temperature difference;
and S155, if the temperature difference between the indoor environment temperature and the target set temperature is smaller than a second preset temperature difference, controlling the indoor fan 2 to stop reducing the rotating speed.
In this embodiment, after the indoor fan 2 is controlled to reduce the rotation speed, the heat exchange amount of the indoor unit will be reduced, so as to avoid that the continuous reduction of the heat exchange amount of the indoor unit affects the comfort of the user, the embodiment further controls the indoor fan 2 by setting a second preset temperature difference. Specifically, the second preset temperature difference is preset, for example, 0.5 °, wherein the second preset temperature difference is smaller than the first preset temperature difference. After the indoor fan 2 is controlled to reduce the rotation speed, the temperature difference between the indoor environment temperature and the target set temperature is gradually reduced, and when the temperature difference is reduced to be smaller than the first preset temperature difference, the indoor fan 2 can be controlled to stop reducing the rotation speed. For example, when the temperature difference is smaller than the second preset temperature difference, that is, -0.5 is less than or equal to Ts (set temperature) -Tn (indoor temperature) is less than or equal to 0.5, the rotation speed change of the indoor fan 2 stops the operation, and the supercooling degree of the outdoor side refrigerant can be improved by reducing the rotation speed of the indoor fan.
With continued reference to fig. 1, an embodiment of the present invention further provides an air conditioner, including an indoor unit and an outdoor unit connected to the indoor unit through a pipeline, where the outdoor unit includes a throttling device 5, a temperature sensor 3, and a pressure sensor 4, where the temperature sensor 3 and the pressure sensor 4 are disposed at a position in the pipeline where the throttling device 5 flows out of a refrigerant, the temperature sensor 3 is used to obtain a current temperature of the throttled refrigerant, and the pressure sensor 4 is used to obtain a current pressure of the throttled refrigerant; wherein, the air conditioner executes the control method.
In an example, referring to fig. 10, fig. 10 is a control logic diagram of the air conditioner of the present embodiment when the above-described control method is performed. Firstly, the pressure P and the temperature T of the refrigerant (refrigerant) are detected, then the saturated liquid temperature Tb of the current refrigerant (refrigerant) is calculated, then whether T is larger than Tb-1 is judged, if not, the control action is not executed, if yes, the refrigerant supersaturation is indicated, at this time, the rotation speed of the outdoor fan 6 is controlled to rise at the speed of 50RPM/min, and the frequency of the compressor 8 is controlled to rise at the speed of 2 Hz/min. After the control actions of the outdoor fan 6 and the compressor 8 are executed, on one hand, whether T is smaller than Tb-1 is continuously judged, if so, the refrigerant is in a supercooling zone, the operation parameters do not need to be adjusted, the compressor 8 is controlled to stop lifting frequency, and the outdoor fan 6 is controlled to stop lifting rotating speed; if otherwise, the refrigerant is still supersaturated, no action is taken. On the other hand, whether the temperature difference between the indoor environment temperature and the user set temperature is larger than a first preset temperature value is judged, if so, namely when Ts (set temperature) -Tn (indoor temperature) >2 ℃, the indoor fan 2 is reduced at a speed of 50RPM/min, so that the heat exchange quantity of the indoor unit is reduced, and if not, no action is executed. Finally, whether the temperature difference between the indoor environment temperature and the user set temperature is smaller than a second preset temperature threshold value is continuously judged, namely when-0.5 is smaller than or equal to Ts (set temperature) -Tn (indoor temperature) is smaller than or equal to 0.5, the rotation speed change of the indoor fan 2 stops acting, and the supercooling degree of the outdoor side refrigerant can be improved by reducing the rotation speed of the indoor fan.
According to the air conditioner, the outdoor fan 6 is controlled to increase the rotating speed and the compressor 8 is controlled to increase the operating frequency according to the current temperature of the refrigerant and the saturated liquid temperature of the refrigerant, so that the heat exchange capacity of the outdoor unit is increased, the temperature of the refrigerant outside the outdoor unit is reduced, the supercooling degree of the refrigerant is increased, the refrigerant is throttled and falls into a supercooling region, namely, the refrigerant is ensured to be still liquid after being throttled, liquid flow sound is avoided due to a gas-liquid two-phase state, the noise of the liquid flow sound is fundamentally eliminated, the indoor temperature is not influenced, and the comfort of a user is improved.
Fig. 11 is a schematic block diagram of an air conditioner control device 200 according to an embodiment of the present invention. As shown in fig. 11, the present invention also provides an air conditioner control device 200 corresponding to the above air conditioner control method. The air conditioner control device 200 includes a unit for performing the above-described air conditioner control method, and may be configured in an air conditioner. Specifically, referring to fig. 11, the air conditioner control device 200 includes an acquisition unit 201 determining unit 202 and a control unit 203.
Wherein, the acquisition unit 201 is used for acquiring the current temperature and the current pressure of the refrigerant after the refrigerant flows through the throttling device; a determining unit 202 for determining a saturated liquid temperature of the refrigerant according to the current pressure of the refrigerant; and the control unit 203 is configured to control the outdoor fan to increase the rotation speed and/or the compressor to increase the operation frequency if the current temperature of the refrigerant is detected to be greater than the saturated liquid temperature.
In some embodiments, for example, the air conditioner control device 200 includes a saturation determination unit and a first stopping unit.
A saturation determination unit configured to determine whether the current temperature of the refrigerant is less than the saturated liquid temperature; and the first stopping unit is used for controlling the outdoor fan to stop increasing the rotating speed and/or controlling the compressor to stop increasing the operating frequency if the current temperature of the refrigerant is smaller than the saturated liquid temperature.
In some embodiments, for example, the air conditioner control device 200 includes a temperature acquisition unit, a first temperature difference determination unit, and a rotation speed reduction unit.
The temperature acquisition unit is used for acquiring indoor environment temperature and target set temperature; a first temperature difference judging unit configured to judge whether a temperature difference between the indoor environmental temperature and the target set temperature is greater than a first preset temperature difference; and the rotating speed reducing unit is used for controlling the indoor fan to reduce the rotating speed if the temperature difference between the indoor environment temperature and the target set temperature is larger than a first preset temperature difference.
In some embodiments, for example, the air conditioner control device 200 includes a second temperature difference judging unit and a second stopping unit.
A second temperature difference judging unit configured to judge whether a temperature difference between the indoor environmental temperature and the target set temperature is smaller than a second preset temperature difference; and the second stopping unit is used for controlling the indoor fan to stop reducing the rotating speed if the temperature difference between the indoor environment temperature and the target set temperature is smaller than a second preset temperature difference.
In some embodiments, for example, the determining unit 202 includes a pressure-enthalpy diagram unit and a determining subunit.
The pressure enthalpy diagram unit is used for acquiring a pressure enthalpy diagram corresponding to the refrigerant; a determining subunit for determining the saturated liquid temperature corresponding to the current pressure of the refrigerant according to the pressure-enthalpy diagram.
In some embodiments, for example the present embodiment, the determining subunit includes a temperature determining unit and a calculating unit.
A temperature determining unit configured to determine a temperature value corresponding to the current pressure of the refrigerant according to the pressure-enthalpy diagram; and the calculating unit is used for calculating the saturated liquid temperature according to the temperature value and a preset allowance.
The above-described air conditioner control device may be implemented in the form of a computer program that can be run on an air conditioner as shown in fig. 12.
Referring to fig. 12, fig. 12 is a schematic block diagram of an air conditioner according to an embodiment of the present invention. The air conditioner 300 includes an indoor unit and an outdoor unit, and the outdoor unit includes a throttle device, a temperature sensor, and a pressure sensor.
Referring to fig. 12, the air conditioner 300 includes a processor 302, a memory, and a network interface 305, which are connected through a system bus 301, wherein the memory may include a non-volatile storage medium 303 and an internal memory 304.
The non-volatile storage medium 303 may store an operating system 3031 and a computer program 3032. The computer program 3032, when executed, may cause the processor 302 to perform an air conditioner control method.
The processor 302 is used to provide computing and control capabilities to support the operation of the overall air conditioner 300.
The internal memory 304 provides an environment for the execution of a computer program 3032 in the non-volatile storage medium 303, which computer program 3032, when executed by the processor 302, causes the processor 302 to perform an air conditioner control method.
The network interface 305 is used for network communication with other devices. It will be appreciated by those skilled in the art that the structure shown in fig. 12 is merely a block diagram of a portion of the structure associated with the present invention and is not intended to limit the air conditioner 300 to which the present invention is applied, and that a particular air conditioner 300 may include more or fewer components than shown, or may combine certain components, or may have a different arrangement of components.
Wherein the processor 302 is configured to execute a computer program 3032 stored in a memory to implement any embodiment of the above-described air conditioner control method.
It should be appreciated that in embodiments of the present invention, the Processor 302 may be a central processing unit (Central Processing Unit, CPU), the Processor 302 may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application SPECIFIC INTEGRATED Circuits (ASICs), off-the-shelf Programmable gate arrays (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Those skilled in the art will appreciate that all or part of the flow in a method embodying the above described embodiments may be accomplished by computer programs instructing the relevant hardware. The computer program may be stored in a storage medium that is a computer readable storage medium. The computer program is executed by at least one processor in the computer system to implement the flow steps of the embodiments of the method described above.
Accordingly, the present invention also provides a storage medium. The storage medium may be a computer readable storage medium. The storage medium stores a computer program. The computer program, when executed by a processor, causes the processor to perform any of the embodiments of the air conditioner control method described above.
The storage medium may be a U-disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, or other various computer-readable storage media that can store program codes.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs. The units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs. In addition, each functional unit in the embodiments of the present invention 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 integrated unit may be stored in a storage medium if implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention is essentially or partly contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing an air conditioner to perform all or part of the steps of the method according to the embodiments of the present invention.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (9)
1. An air conditioner control method, comprising:
acquiring a current temperature and a current pressure of the refrigerant detected at an outlet of the throttling device;
Determining a saturated liquid temperature of the refrigerant based on the current pressure of the refrigerant;
If the current temperature of the refrigerant is detected to be greater than the saturated liquid temperature, controlling an outdoor fan to increase the rotating speed and/or controlling a compressor to increase the operating frequency;
judging whether the current temperature of the refrigerant is less than the saturated liquid temperature;
and if the current temperature of the refrigerant is smaller than the saturated liquid temperature, controlling the outdoor fan to stop increasing the rotating speed and/or controlling the compressor to stop increasing the operating frequency.
2. The method of claim 1, wherein the step of controlling the outdoor fan to increase the rotational speed and/or the compressor to increase the operating frequency further comprises, if the current temperature of the refrigerant is detected to be greater than the saturated liquid temperature:
acquiring indoor environment temperature and target set temperature;
judging whether the temperature difference between the indoor environment temperature and the target set temperature is larger than a first preset temperature difference or not;
and if the temperature difference between the indoor environment temperature and the target set temperature is larger than the first preset temperature difference, controlling the indoor fan to reduce the rotating speed.
3. The method of claim 2, wherein the step of controlling the indoor fan to reduce the rotation speed further comprises, if the temperature difference between the indoor ambient temperature and the target set temperature is greater than a first preset temperature difference:
judging whether the temperature difference between the indoor environment temperature and the target set temperature is smaller than a second preset temperature difference or not;
and if the temperature difference between the indoor environment temperature and the target set temperature is smaller than a second preset temperature difference, controlling the indoor fan to stop reducing the rotating speed.
4. A method according to any one of claims 1-3, wherein said step of determining a saturated liquid temperature of said refrigerant from said current pressure of said refrigerant comprises:
Acquiring a pressure enthalpy diagram corresponding to the refrigerant;
determining the saturated liquid temperature corresponding to the current pressure of the refrigerant according to the pressure-enthalpy diagram.
5. The method of claim 4, wherein the step of determining the saturated liquid temperature corresponding to the current pressure of the refrigerant from the pressure-enthalpy diagram comprises:
determining a temperature value corresponding to the current pressure of the refrigerant according to the pressure-enthalpy diagram;
and calculating the saturated liquid temperature according to the temperature value and a preset allowance.
6. The air conditioner is characterized by comprising an indoor unit and an outdoor unit connected with the indoor unit through a pipeline, wherein the outdoor unit comprises a throttling device, a temperature sensor and a pressure sensor, the temperature sensor and the pressure sensor are arranged at the position in the pipeline where a refrigerant flows out of the throttling device, the temperature sensor is used for acquiring the current temperature of the throttled refrigerant, and the pressure sensor is used for acquiring the current pressure of the throttled refrigerant; wherein the air conditioner performs the control method according to any one of claims 1 to 5.
7. An air conditioner control device, comprising:
An acquisition unit for acquiring a current temperature and a current pressure of the refrigerant detected at an outlet of the throttle device;
a determining unit configured to determine a saturated liquid temperature of the refrigerant according to the current pressure of the refrigerant;
the control unit is used for controlling the outdoor fan to increase the rotating speed and/or controlling the compressor to increase the operating frequency if the current temperature of the refrigerant is detected to be greater than the saturated liquid temperature;
A saturation determination unit configured to determine whether the current temperature of the refrigerant is less than the saturated liquid temperature;
And the first stopping unit is used for controlling the outdoor fan to stop increasing the rotating speed and/or controlling the compressor to stop increasing the operating frequency if the current temperature of the refrigerant is smaller than the saturated liquid temperature.
8. An air conditioner comprising a memory and a processor, the memory having a computer program stored thereon, the processor implementing the method of any of claims 1-5 when executing the computer program.
9. A computer readable storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the method according to any of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211274207.9A CN115479354B (en) | 2022-10-18 | 2022-10-18 | Air conditioner control method and device, air conditioner and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211274207.9A CN115479354B (en) | 2022-10-18 | 2022-10-18 | Air conditioner control method and device, air conditioner and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115479354A CN115479354A (en) | 2022-12-16 |
| CN115479354B true CN115479354B (en) | 2024-05-28 |
Family
ID=84396636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211274207.9A Active CN115479354B (en) | 2022-10-18 | 2022-10-18 | Air conditioner control method and device, air conditioner and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115479354B (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227533A (en) * | 1997-02-13 | 1998-08-25 | Mitsubishi Electric Corp | Air-conditioner |
| US5987907A (en) * | 1994-05-30 | 1999-11-23 | Mitsubishi Denki Kabushiki Kaisha | Refrigerant circulating system |
| JP2003232584A (en) * | 2003-01-27 | 2003-08-22 | Mitsubishi Electric Corp | Air conditioner |
| CN1506637A (en) * | 2002-11-22 | 2004-06-23 | Lg电子株式会社 | Method for controlling noise reducing of air conditioner |
| JP2004226006A (en) * | 2003-01-23 | 2004-08-12 | Fujitsu General Ltd | Controller for multiple indoor unit type air conditioner |
| JP2007040589A (en) * | 2005-08-02 | 2007-02-15 | Sharp Corp | Air conditioner |
| CN1969156A (en) * | 2004-04-12 | 2007-05-23 | 约克国际公司 | Chiller sound reduction control system and method |
| KR20140019183A (en) * | 2012-08-06 | 2014-02-14 | 현대자동차주식회사 | Apparatus for refrigerant flow sound reduction of air conditioner |
| CN104279709A (en) * | 2014-10-08 | 2015-01-14 | 美的集团股份有限公司 | Air conditioner control method, air conditioner control device and air conditioner |
| KR20160097566A (en) * | 2015-02-09 | 2016-08-18 | 엘지전자 주식회사 | Air conditioner and a method for controlling the same |
| JP2017150678A (en) * | 2016-02-22 | 2017-08-31 | 株式会社富士通ゼネラル | Air conditioner |
| WO2017168681A1 (en) * | 2016-03-31 | 2017-10-05 | 三菱電機株式会社 | Air conditioner |
| CN108518807A (en) * | 2018-05-24 | 2018-09-11 | 广东美的制冷设备有限公司 | Control method, control device, refrigeration equipment and computer readable storage medium |
| EP3537067A1 (en) * | 2018-03-09 | 2019-09-11 | LG Electronics Inc. | Indoor apparatus in air-conditioning system and method for controlling the apparatus |
| CN113915806A (en) * | 2021-10-20 | 2022-01-11 | 广东美的制冷设备有限公司 | Refrigerant sound reduction control system, method, air conditioner and computer readable medium |
| CN114322066A (en) * | 2021-12-30 | 2022-04-12 | 珠海格力电器股份有限公司 | Indoor heat exchanger assembly, multi-split air conditioning system and control method thereof |
| CN114413404A (en) * | 2021-12-20 | 2022-04-29 | 青岛海尔空调电子有限公司 | Method and device for reducing noise of air conditioner refrigerant, air conditioner and storage medium |
| CN114484944A (en) * | 2022-03-22 | 2022-05-13 | 珠海格力电器股份有限公司 | Self-supercooling structure and air conditioner |
| CN114608127A (en) * | 2022-01-26 | 2022-06-10 | 宁波奥克斯电气股份有限公司 | Control method and device for improving noise of indoor unit and air conditioner |
| CN117029260A (en) * | 2023-09-08 | 2023-11-10 | 珠海格力电器股份有限公司 | Control method and device for reducing liquid flow noise of indoor unit in multi-split air conditioner system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8136363B2 (en) * | 2005-04-15 | 2012-03-20 | Thermo King Corporation | Temperature control system and method of operating the same |
| CN103958986B (en) * | 2011-11-29 | 2016-08-31 | 三菱电机株式会社 | Refrigerating air-conditioning |
| JP6337937B2 (en) * | 2016-09-30 | 2018-06-06 | ダイキン工業株式会社 | Air conditioner |
-
2022
- 2022-10-18 CN CN202211274207.9A patent/CN115479354B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5987907A (en) * | 1994-05-30 | 1999-11-23 | Mitsubishi Denki Kabushiki Kaisha | Refrigerant circulating system |
| JPH10227533A (en) * | 1997-02-13 | 1998-08-25 | Mitsubishi Electric Corp | Air-conditioner |
| CN1506637A (en) * | 2002-11-22 | 2004-06-23 | Lg电子株式会社 | Method for controlling noise reducing of air conditioner |
| JP2004226006A (en) * | 2003-01-23 | 2004-08-12 | Fujitsu General Ltd | Controller for multiple indoor unit type air conditioner |
| JP2003232584A (en) * | 2003-01-27 | 2003-08-22 | Mitsubishi Electric Corp | Air conditioner |
| CN1969156A (en) * | 2004-04-12 | 2007-05-23 | 约克国际公司 | Chiller sound reduction control system and method |
| JP2007040589A (en) * | 2005-08-02 | 2007-02-15 | Sharp Corp | Air conditioner |
| KR20140019183A (en) * | 2012-08-06 | 2014-02-14 | 현대자동차주식회사 | Apparatus for refrigerant flow sound reduction of air conditioner |
| CN104279709A (en) * | 2014-10-08 | 2015-01-14 | 美的集团股份有限公司 | Air conditioner control method, air conditioner control device and air conditioner |
| KR20160097566A (en) * | 2015-02-09 | 2016-08-18 | 엘지전자 주식회사 | Air conditioner and a method for controlling the same |
| JP2017150678A (en) * | 2016-02-22 | 2017-08-31 | 株式会社富士通ゼネラル | Air conditioner |
| WO2017168681A1 (en) * | 2016-03-31 | 2017-10-05 | 三菱電機株式会社 | Air conditioner |
| EP3537067A1 (en) * | 2018-03-09 | 2019-09-11 | LG Electronics Inc. | Indoor apparatus in air-conditioning system and method for controlling the apparatus |
| CN108518807A (en) * | 2018-05-24 | 2018-09-11 | 广东美的制冷设备有限公司 | Control method, control device, refrigeration equipment and computer readable storage medium |
| CN113915806A (en) * | 2021-10-20 | 2022-01-11 | 广东美的制冷设备有限公司 | Refrigerant sound reduction control system, method, air conditioner and computer readable medium |
| CN114413404A (en) * | 2021-12-20 | 2022-04-29 | 青岛海尔空调电子有限公司 | Method and device for reducing noise of air conditioner refrigerant, air conditioner and storage medium |
| CN114322066A (en) * | 2021-12-30 | 2022-04-12 | 珠海格力电器股份有限公司 | Indoor heat exchanger assembly, multi-split air conditioning system and control method thereof |
| CN114608127A (en) * | 2022-01-26 | 2022-06-10 | 宁波奥克斯电气股份有限公司 | Control method and device for improving noise of indoor unit and air conditioner |
| CN114484944A (en) * | 2022-03-22 | 2022-05-13 | 珠海格力电器股份有限公司 | Self-supercooling structure and air conditioner |
| CN117029260A (en) * | 2023-09-08 | 2023-11-10 | 珠海格力电器股份有限公司 | Control method and device for reducing liquid flow noise of indoor unit in multi-split air conditioner system |
Non-Patent Citations (2)
| Title |
|---|
| TWO-FLUID MODEL FOR FLOW CHARACTERISTICS OF REFRIGERANT THROUGH SHORT TUBE;杨亮等;机械工程学报;20040430(第3期);59-62 * |
| 分体挂壁空调制冷过程制冷剂冲刷声的研究与改善;张永亮;;日用电器;20160625(第06期);33-39 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115479354A (en) | 2022-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110094857B (en) | Control method and device of air conditioner electronic expansion valve, computer product and air conditioner | |
| JP5627620B2 (en) | Air conditioner | |
| JP4952822B2 (en) | Heat source side heat exchanger fan control method and air conditioner | |
| CN111141075B (en) | Air conditioner control method and device, air conditioner and storage medium | |
| EP3647680B1 (en) | Method and device for controlling a plurality of expansion valves | |
| CN110595004B (en) | Air conditioner noise reduction control method and system and air conditioner | |
| CN114608127B (en) | Control method and device for improving noise of indoor unit and air conditioner | |
| CN110726225B (en) | Multi-split system and control method thereof | |
| CN111336666A (en) | Operation method and device of air conditioner, air conditioner and computer readable storage medium | |
| CN115479354B (en) | Air conditioner control method and device, air conditioner and storage medium | |
| JP2018124033A (en) | Air conditioning control system and air conditioning control method | |
| JP4271275B2 (en) | Electronic expansion valve control device and electronic expansion valve control method | |
| CN115200163B (en) | Air conditioner control method and device and air conditioner | |
| JP2020176798A (en) | Air conditioner | |
| KR101551973B1 (en) | Air Conditioning System for Vehicle Using a Electronic Expasion Valve | |
| CN111121242A (en) | Adjusting method and device for operating parameters of air conditioning system and air conditioning system | |
| JP2009204225A (en) | Air conditioner | |
| JP6444536B2 (en) | Compressor deterioration diagnosis device and compressor deterioration diagnosis method | |
| CN113432273B (en) | Air conditioning system temperature control method and device, air conditioning system and storage medium | |
| JP3557466B2 (en) | Air conditioner | |
| CN114198871B (en) | Multi-split air conditioner, control method and device thereof and readable storage medium | |
| WO2024043206A1 (en) | Control device, control method, and air conditioner | |
| CN110986224B (en) | Air conditioner, control method thereof and storage medium | |
| CN117073194A (en) | Electronic valve control method and device and related equipment | |
| JP2646917B2 (en) | Refrigeration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |