CN117366802A - Method and device for controlling air conditioner, air conditioner and computer readable storage medium - Google Patents
Method and device for controlling air conditioner, air conditioner and computer readable storage medium Download PDFInfo
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- CN117366802A CN117366802A CN202311166760.5A CN202311166760A CN117366802A CN 117366802 A CN117366802 A CN 117366802A CN 202311166760 A CN202311166760 A CN 202311166760A CN 117366802 A CN117366802 A CN 117366802A
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- 238000000034 method Methods 0.000 title claims abstract description 72
- 239000003507 refrigerant Substances 0.000 claims abstract description 173
- 230000001105 regulatory effect Effects 0.000 claims description 61
- 230000001276 controlling effect Effects 0.000 claims description 49
- 238000004378 air conditioning Methods 0.000 abstract description 29
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 description 14
- 239000007788 liquid Substances 0.000 description 11
- 238000004891 communication Methods 0.000 description 10
- 238000007599 discharging Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000005057 refrigeration Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000006386 memory function Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- 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
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an air conditioner, which comprises the following steps: detecting the exhaust temperature of the compressor under the condition that the air conditioner is in operation; and controlling the refrigerant to enter the expansion tank under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature. Because the volumes of the first variable cavity and the second variable cavity in the expansion tank are variable, the volume of the expansion tank can be increased along with the entering of the refrigerant, so that the pressure of the system is kept stable and the temperature adjusting effect is improved in the process of adjusting the refrigerant quantity of the air conditioning system. The application also discloses a device for controlling the air conditioner, the air conditioner and a computer readable storage medium.
Description
Technical Field
The present application relates to the technical field of intelligent home appliances, and for example, to a method and apparatus for controlling an air conditioner, and a computer readable storage medium.
Background
At present, in an air conditioning system, a refrigerant is a main medium for realizing energy transfer of the air conditioning system, the quantity of the refrigerant influences the performance of the air conditioner, the power consumption of the air conditioner is increased due to excessive refrigerant, and the capacity output of the air conditioner is influenced due to insufficient refrigerant. Generally, the air conditioner needs less refrigerant than heating, so that the refrigerant circulating in the condenser can be quickly cooled, the power can be reduced, and the refrigerating speed is higher. The heating refrigerant directly enters the indoor evaporator from the compressor end, and more energy needs to be accumulated and directly released in the evaporator, so that more refrigerant is needed for air conditioning refrigeration compared with heating. The current air conditioner can not adjust the circulation volume of the refrigerant according to the refrigerating or heating requirement, and only the refrigerant is filled in the circulation initially, so that the maximum energy efficiency of the refrigerating or heating of the air conditioner can not be exerted.
The related art discloses a method for adjusting the refrigerant quantity of an air conditioner, which comprises the following steps: acquiring current operation parameters, working condition parameters and current refrigerant filling quantity of an air conditioning system; determining the maximum energy efficiency value of the air conditioning system in the current running state based on the current running parameters, the working condition parameters and the current refrigerant filling quantity; determining a target refrigerant filling quantity corresponding to the maximum energy efficiency value; the refrigerant liquid storage adjusting device is controlled to adjust the refrigerant quantity in the air conditioning system according to the target refrigerant filling quantity. The technical problem that the air conditioning system in the related art cannot adjust the refrigerant quantity, so that the system operation energy efficiency cannot be in the optimal energy efficiency state is solved.
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:
the system operation energy efficiency is improved to a certain extent by adopting the related technology to adjust the refrigerant circulation quantity through the liquid storage tank, however, because the liquid storage tank has no elasticity, when the stored refrigerant quantity is increased, the volume of the liquid storage tank cannot be increased, so that the system pressure is unstable, and the temperature adjusting effect is poor.
It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present 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 and a device for controlling an air conditioner, the air conditioner and a computer readable storage medium, so that the pressure of a system is kept stable and the temperature adjusting effect is improved in the process of adjusting the refrigerant quantity of an air conditioning system.
In some embodiments, the air conditioner comprises an expansion tank, a first end of the expansion tank is connected with an exhaust branch pipe of the compressor, the exhaust branch pipe is provided with a first pressure regulating valve, and a second end of the expansion tank is connected with a pipeline between the condenser and the throttling element through a first pipeline provided with a second pressure regulating valve; the method comprises the following steps: detecting the exhaust temperature of the compressor under the condition that the air conditioner is in operation; and controlling the refrigerant to enter the expansion tank under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature.
Optionally, the expansion tank comprises an inner container which divides the expansion tank into a first variable cavity connected with the exhaust branch pipe and a second variable cavity connected with the first pipeline; the method for controlling the refrigerant to enter the expansion tank comprises the following steps: determining a second pressure of the second variable cavity; and opening the second pressure regulating valve until the pressure of the second variable cavity reaches the second pressure, and closing the second pressure regulating valve.
Optionally, the determining the second pressure of the second variable cavity includes: acquiring current operation parameters of an air conditioner; determining a second pressure corresponding to the current operation parameter according to a preset second relation; wherein the current operating parameters include an operating frequency of the compressor and/or a system pressure and/or a discharge temperature of the compressor.
Optionally, the air conditioner comprises a third electromagnetic valve arranged on a pipeline between the condenser and the compressor; the method further comprises the steps of: under the condition that the operation of the air conditioner is finished, the first pressure regulating valve and the second pressure regulating valve are opened, and the third electromagnetic valve is closed; detecting the pressure of the second variable cavity; and closing the first pressure regulating valve and the second pressure regulating valve when the pressure of the second variable cavity is smaller than a second threshold value.
Optionally, the air conditioner comprises a first electromagnetic valve arranged on a pipeline between the evaporator and the compressor and a second electromagnetic valve arranged on a pressure relief pipe; one end of the pressure relief pipe is connected with a pipeline between the first pressure regulating valve and the first end, and the other end of the pressure relief pipe is connected with an air return pipe of the compressor; and when the pressure of the second variable cavity is smaller than the second threshold value, closing the first pressure regulating valve and the second pressure regulating valve, and then further comprising: closing the first electromagnetic valve and opening the second electromagnetic valve; detecting a pressure of the first variable cavity; and under the condition that the pressure of the first variable cavity is smaller than a first threshold value, closing the second electromagnetic valve, opening the first electromagnetic valve and the third electromagnetic valve, and controlling the compressor to stop.
Optionally, the method further comprises: under the condition of power failure in the running process of the air conditioner, determining the state of the refrigerant in the expansion tank; and executing corresponding refrigerant discharge operation according to the refrigerant state in the expansion tank.
Optionally, the determining the refrigerant state in the expansion tank includes: detecting the pressure of the first variable cavity and the pressure of the second variable cavity; and determining the refrigerant state in the expansion tank according to the pressure of the first variable cavity and the pressure of the second variable cavity.
Optionally, determining the refrigerant state in the expansion tank according to the pressure of the first variable cavity and the pressure of the second variable cavity includes: determining that a refrigerant exists in the first variable cavity and that the refrigerant does not exist in the second variable cavity under the condition that the pressure of the first variable cavity is larger than a first threshold and the pressure of the second variable cavity is smaller than a second threshold; determining that no refrigerant exists in the first variable cavity and the refrigerant exists in the second variable cavity under the condition that the pressure of the first variable cavity is smaller than a first threshold value and the pressure of the second variable cavity is larger than a second threshold value; determining that the refrigerant exists in the first variable cavity and the second variable cavity under the condition that the pressure of the first variable cavity is larger than a first threshold value and the pressure of the second variable cavity is larger than a second threshold value; and determining that no refrigerant exists in the first variable cavity and the second variable cavity under the condition that the pressure of the first variable cavity is smaller than a first threshold value and the pressure of the second variable cavity is smaller than a second threshold value.
Optionally, according to the refrigerant state in the expansion tank, performing a corresponding refrigerant discharge operation, including: the refrigerant in the first variable cavity is controlled to be discharged under the condition that the refrigerant in the second variable cavity is not contained in the first variable cavity; the refrigerant in the second variable cavity is controlled to be discharged under the condition that the first variable cavity is free of the refrigerant and the second variable cavity is provided with the refrigerant; under the condition that the refrigerants are arranged in the first variable cavity and the second variable cavity, controlling the discharge of the refrigerants in the first variable cavity and then controlling the discharge of the refrigerants in the second variable cavity; and under the condition that the first variable cavity and the second variable cavity are free from refrigerants, the refrigerant discharging operation is exited.
Optionally, controlling discharging the refrigerant in the first variable cavity includes: the method comprises the steps of starting a compressor, closing a first pressure regulating valve and a second pressure regulating valve, closing a first electromagnetic valve and a third electromagnetic valve, starting the second electromagnetic valve until the pressure of a first variable cavity is smaller than a first threshold value, controlling the compressor to stop, starting the first electromagnetic valve and the third electromagnetic valve, and closing the second electromagnetic valve.
Optionally, controlling discharging the refrigerant in the second variable cavity includes: the compressor is started, the first pressure regulating valve and the second pressure regulating valve are started, the second electromagnetic valve and the third electromagnetic valve are closed, the first electromagnetic valve is started until the pressure of the second variable cavity is smaller than a second threshold value, the compressor is controlled to stop, the third electromagnetic valve is opened, and the second electromagnetic valve is closed.
In some embodiments, the apparatus comprises: the air conditioner control device comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the method for controlling the air conditioner when executing the program instructions.
In some embodiments, the air conditioner includes:
the air conditioner body comprises an expansion tank, wherein the first end of the expansion tank is connected with an exhaust branch pipe of the compressor, which is provided with a first pressure regulating valve, and the second end of the expansion tank is connected with a pipeline between the condenser and the throttling element through a first pipeline, which is provided with a second pressure regulating valve; the method comprises the steps of,
the device for controlling an air conditioner is installed in the air conditioner body.
In some embodiments, the computer readable storage medium stores program instructions that, when executed, perform the method for controlling an air conditioner described above.
The method and device for controlling the air conditioner, the air conditioner and the computer readable storage medium provided by the embodiment of the disclosure can realize the following technical effects:
under the condition that the air conditioner operates, the exhaust temperature of the compressor is detected, and the refrigerant is controlled to enter the expansion tank under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature. Because the volumes of the first variable cavity and the second variable cavity in the expansion tank are variable, the volume of the expansion tank can be increased along with the entering of the refrigerant, so that the pressure of the system is kept stable and the temperature adjusting effect is improved in the process of adjusting the refrigerant quantity of the air conditioning system.
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 diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another 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:
1: a compressor; 2: a four-way valve; 3: a third electromagnetic valve; 4: a condenser; 5: a throttle element; 6: an evaporator; 7: a first electromagnetic valve; 8: an air return pipe; 9: an expansion tank; 91: a first variable cavity; 92: a second variable cavity; 93: a first pressure regulating valve; 94: a second pressure regulating valve; 95: a first end; 96: a second end; 97: a first pipeline; 10: an exhaust branch pipe; 11: a pressure relief tube; 12: a second electromagnetic valve; 300: the device is used for controlling the water chiller; 301: a processor; 101: a memory; 102: a communication interface; 103: a bus.
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.
In the embodiment of the disclosure, the intelligent home appliance refers to a home appliance formed after a microprocessor, a sensor technology and a network communication technology are introduced into the home appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent home appliance often depends on the application and processing of modern technologies such as the internet of things, the internet and an electronic chip, for example, the intelligent home appliance can realize remote control and management of a user on the intelligent home appliance by connecting the electronic appliance.
In the disclosed embodiment, the terminal device refers to an electronic device with a wireless connection function, and the terminal device can be in communication connection with the intelligent household electrical appliance through connecting with the internet, or can be in communication connection with the intelligent household electrical appliance through Bluetooth, wifi and other modes. In some embodiments, the terminal device is, for example, a mobile device, a computer, or an in-vehicle device built into a hover vehicle, etc., or any combination thereof. The mobile device may include, for example, a cell phone, smart home device, wearable device, smart mobile device, virtual reality device, etc., or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, etc.
At present, in an air conditioning system, a refrigerant is a main medium for realizing energy transfer of the air conditioning system, the quantity of the refrigerant influences the performance of the air conditioner, the power consumption of the air conditioner is increased due to excessive refrigerant, and the capacity output of the air conditioner is influenced due to insufficient refrigerant. Generally, air conditioning refrigeration requires less refrigerant than heating, so that the refrigerant circulating in the condenser (outdoor side) is cooled down rapidly, the power is lowered, and the refrigerating speed is higher. The heating refrigerant directly enters the indoor evaporator from the compressor end, and more energy needs to be accumulated and directly released in the evaporator, so that more refrigerant is needed for air conditioning refrigeration compared with heating. The current air conditioner can not adjust the circulation volume of the refrigerant according to the refrigerating or heating requirement, and only the refrigerant is filled in the circulation initially, so that the maximum energy efficiency of the refrigerating or heating of the air conditioner can not be exerted. The related art discloses a method for adjusting the refrigerant quantity of an air conditioner, which comprises the following steps: acquiring current operation parameters, working condition parameters and current refrigerant filling quantity of an air conditioning system; determining the maximum energy efficiency value of the air conditioning system in the current running state based on the current running parameters, the working condition parameters and the current refrigerant filling quantity; determining a target refrigerant filling quantity corresponding to the maximum energy efficiency value; the refrigerant liquid storage adjusting device is controlled to adjust the refrigerant quantity in the air conditioning system according to the target refrigerant filling quantity. The technical problem that the air conditioning system in the related art cannot adjust the refrigerant quantity, so that the system operation energy efficiency cannot be in the optimal energy efficiency state is solved. The system operation energy efficiency is improved to a certain extent by adopting the related technology to adjust the refrigerant circulation quantity through the liquid storage tank, however, because the liquid storage tank has no elasticity, when the stored refrigerant quantity is increased, the volume of the liquid storage tank cannot be increased, so that the system pressure is unstable, and the temperature adjusting effect is poor.
Referring to fig. 1, an embodiment of the present disclosure discloses an air conditioner including a refrigerant circulation circuit and an expansion tank 9. The refrigerant circulation loop comprises a compressor 1, a four-way valve 2, a third electromagnetic valve 3, a condenser 4, a throttling element 5, an evaporator 6 and a first electromagnetic valve 7 which are sequentially connected, wherein the first electromagnetic valve 7 is connected with an air return pipe 8 through the four-way valve 2 and returns to the compressor 1. The first end 95 of the expansion tank 9 is connected with the exhaust branch pipe 10 of the compressor 1, a first pressure regulating valve 93 for controlling the on-off of the exhaust branch pipe 10 is arranged on the exhaust branch pipe 10, the second end 96 of the expansion tank 9 is connected with a pipeline between the outlet of the condenser 4 and the throttling element 5 through a first pipeline 97, and a second pressure regulating valve 94 for controlling the on-off of the first pipeline 97 is arranged on the first pipeline 97. A pressure relief pipe 11 is arranged between the first pressure regulating valve 93 and the first end 95, the other end of the pressure relief pipe 11 is connected with the muffler 8 of the compressor 1, and a second electromagnetic valve 12 for controlling the on-off of the pressure relief pipe 11 is arranged on the pressure relief pipe 11. The expansion tank 9 includes a liner, and the liner divides the expansion tank 9 into a first variable chamber 91 connected to the exhaust branch pipe 10 and a second variable chamber 92 connected to the first pipe 97. The air conditioner also comprises a processor electrically connected with the electric components and used for controlling the actions of the electric components.
Based on the above-mentioned air conditioning structure, as shown in fig. 2, an embodiment of the disclosure provides a method for controlling an air conditioner, including:
s21, in the case of air conditioning operation, the processor detects the exhaust temperature of the compressor.
S22, controlling the refrigerant to enter the expansion tank by the processor under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature.
The air conditioning operation comprises air conditioning refrigeration operation or heating operation.
By adopting the method for controlling the air conditioner, provided by the embodiment of the invention, the exhaust temperature of the compressor can be detected under the condition that the air conditioner is in operation, and the refrigerant is controlled to enter the expansion tank under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature. Because the volumes of the first variable cavity and the second variable cavity in the expansion tank are variable, the volume of the expansion tank can be increased along with the entering of the refrigerant, so that the pressure of the system is kept stable and the temperature adjusting effect is improved in the process of adjusting the refrigerant quantity of the air conditioning system. In addition, since the liquid refrigerant is more in this place, the expansion tank can accommodate more refrigerant and the adjustment efficiency can be improved by providing the expansion tank at a position between the condenser and the throttle element.
Based on the above-mentioned air conditioning structure, as shown in fig. 3, an embodiment of the disclosure provides a method for controlling an air conditioner, including:
S21, in the case of air conditioning operation, the processor detects the exhaust temperature of the compressor.
S31, in the case that the fluctuation value of the exhaust temperature is smaller than the first temperature, the processor determines a second pressure of the second variable cavity.
And S32, the processor opens the second pressure regulating valve until the pressure of the second variable cavity reaches the second pressure, and closes the second pressure regulating valve.
The maximum volume of the first variable cavity and the maximum volume of the second variable cavity can be equal to the inner volume of the expansion tank.
By adopting the method for controlling the air conditioner, provided by the embodiment of the disclosure, under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature, the suction temperature and the condensation temperature of the compressor are stable, the refrigerant circulation is good, the working state of the compressor is normal, and the processor adjusts the system refrigerant quantity at the moment, so that the effect of adjusting the air conditioner temperature is slightly influenced. Therefore, the processor determines the second pressure of the second variable cavity, and opens the second pressure regulating valve to enable the refrigerant to flow through the first pipeline from the outlet of the condenser to enter the second variable cavity until the pressure of the second variable cavity reaches the second pressure, and then closes the second pressure regulating valve. At this time, the stored refrigerant quantity in the second variable cavity can enable the refrigerant circulation quantity in the air conditioning system to be in a proper range, so that the energy efficiency of the air conditioning system is in an optimal range, and the refrigeration efficiency is improved.
Optionally, the processor determines a second pressure of the second variable cavity, comprising: the method comprises the steps that a processor obtains current operation parameters of an air conditioner; the processor determines a second pressure corresponding to the current operation parameter according to a preset second relation; wherein the current operating parameters include an operating frequency of the compressor and/or a system pressure and/or a discharge temperature of the compressor.
The second relationship may be obtained by a table look-up method, or may be experimentally measured, or may be determined according to a user setting. For example: the pressure setting of the second variable cavity varies with the frequency of the air conditioner, generally, the lower the refrigeration frequency, the less refrigerant involved in the cycle, the higher the energy efficiency can be exerted, the lower the heating frequency, and the required refrigerant is also relatively lower, so, in the case that the current operation parameter is the operation frequency of the compressor, the processor can determine the second pressure as follows: the operating frequency H of the compressor, when H0 is more than or equal to H1, the second pressure is set to P21; when H1 is more than H and less than or equal to H2, setting P22 by the second pressure; when Hn < H.ltoreq.H (n+1), the second pressure is set to P2 (n+1). Under the condition that the current operation parameter is the system pressure, the system pressure P is set to be P21 when P0 is less than or equal to P1; when P1 is less than P and less than or equal to P2, setting P22 by the second pressure; when Pn < P.ltoreq.P (n+1), the second pressure is set to P2 (n+1). When the current operation parameter is the exhaust temperature of the compressor, when the air conditioner is in cold operation, the exhaust temperature is low, the ring temperature is low, the frequency is low, the system needs little refrigerant, the exhaust temperature is too high, the system load pressure is too high to cause shutdown, therefore, the required refrigerant also needs to be properly reduced compared with the refrigerant in the rated state, and when the exhaust temperature Tcn is less than Tc and less than or equal to Tc (n+1), the second pressure is set to P2 (n+1); when the air conditioner operates in a heating mode, frosting is more easily caused when the exhaust temperature is higher, a high-load working condition of the compressor can occur when the exhaust temperature is low, the refrigerant quantity needs to be reduced, and when the exhaust temperature Thn is smaller than Th and smaller than Th (n+1), the second pressure is set to Ph (n+1); the processor determines the second pressure of the second variable cavity, can also be determined through comprehensive testing, and determines the second pressure through adjusting the working conditions of the test fixed frequency item and the test frequency release item.
In this way, the processor acquires the current operation parameters of the air conditioner, and determines the second pressure corresponding to the current operation parameters according to the preset second relation, so that the second pressure can be matched with the operation frequency of the compressor and/or the system pressure and/or the exhaust temperature of the compressor, the second pressure is more accurate, and the effect of adjusting the refrigerant quantity of the air conditioner is improved.
Based on the above-mentioned air conditioning structure, as shown in fig. 4, an embodiment of the disclosure provides a method for controlling an air conditioner, including:
s21, in the case of air conditioning operation, the processor detects the exhaust temperature of the compressor.
S22, controlling the refrigerant to enter the expansion tank by the processor under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature.
And S41, when the operation of the air conditioner is finished, the processor opens the first pressure regulating valve and the second pressure regulating valve, and closes the third electromagnetic valve.
S42, the processor detects the pressure of the second variable cavity.
And S43, closing the first pressure regulating valve and the second pressure regulating valve by the processor when the pressure of the second variable cavity is smaller than a second threshold value.
By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, under the condition that the operation of the air conditioner is finished, the refrigerant in the expansion tank is required to be discharged, so that the processor opens the first pressure regulating valve and the second pressure regulating valve. At this time, the refrigerant enters the first variable cavity from the exhaust branch pipe, the volume of the first variable cavity is increased, the second variable cavity is compressed, the refrigerant in the second variable cavity flows out from the second end of the expansion tank, flows through the throttling element and the evaporator in sequence, and then returns to the liquid storage tank of the compressor. The processor detects the pressure of the second variable cavity, and when the pressure of the second variable cavity is smaller than the second threshold value, the processor indicates that the refrigerant in the second variable cavity is basically emptied at the moment, so that the processor closes the first pressure regulating valve and the second pressure regulating valve to prevent new refrigerant from entering the first variable cavity and the second variable cavity from the refrigeration cycle loop.
Optionally, in a case where the pressure of the second variable cavity is smaller than the second threshold value, the processor further includes, after closing the first pressure regulating valve and the second pressure regulating valve: the processor closes the first electromagnetic valve and opens the second electromagnetic valve; the processor detects the pressure of the first variable cavity; and under the condition that the pressure of the first variable cavity is smaller than a first threshold value, the processor closes the second electromagnetic valve, opens the first electromagnetic valve and the third electromagnetic valve, and controls the compressor to stop.
Thus, the processor closes the first electromagnetic valve, opens the second electromagnetic valve, enables the expansion tank to be communicated with the air return pipe, and withdraws the refrigerant in the first variable cavity into the compressor through negative pressure of the air return of the compressor. The processor detects the pressure of the first variable cavity, and under the condition that the pressure of the first variable cavity is smaller than a first threshold value, the processor indicates that the refrigerant in the first variable cavity is basically exhausted at the moment. Therefore, the processor closes the second electromagnetic valve, opens the first electromagnetic valve and the third electromagnetic valve, controls the compressor to stop, and enables the air conditioner to recover to the normal stop state.
Optionally, the method for controlling an air conditioner further includes: under the condition of power failure in the running process of the air conditioner, the processor determines the state of the refrigerant in the expansion tank; the processor executes corresponding refrigerant discharging operation according to the refrigerant state in the expansion tank.
The power failure in the air conditioner operation process comprises sudden power failure in the air conditioner refrigeration operation process or sudden power failure in the air conditioner heat operation process.
In this way, when the power is off during the operation of the air conditioner, the refrigerant in the expansion tank needs to be discharged, so the processor determines the state of the refrigerant in the expansion tank, and executes the corresponding refrigerant discharging operation according to the state of the refrigerant in the expansion tank, so that the refrigerant discharging operation is matched with the state of the refrigerant in the current expansion tank, and the execution efficiency of the refrigerant discharging operation is improved.
Optionally, the processor determines a refrigerant condition in the expansion tank, including: the processor detects the pressure of the first variable cavity and the pressure of the second variable cavity; the processor determines the refrigerant state in the expansion tank according to the pressure of the first variable cavity and the pressure of the second variable cavity.
The processor detects the pressure of the first variable cavity and the pressure of the second variable cavity, and specifically can acquire the pressure of the first variable cavity and the pressure of the second variable cavity through the power-off memory function of the air conditioner.
Therefore, the processor detects the pressure of the first variable cavity and the pressure of the second variable cavity, determines the refrigerant state in the expansion tank according to the pressure of the first variable cavity and the pressure of the second variable cavity, and can obtain more accurate refrigerant state in the expansion tank by monitoring the pressure states of the first variable cavity and the second variable cavity.
Optionally, the processor determines a refrigerant state in the expansion tank according to the pressure of the first variable cavity and the pressure of the second variable cavity, including: when the pressure of the first variable cavity is larger than a first threshold value and the pressure of the second variable cavity is smaller than a second threshold value, the processor determines that the first variable cavity is provided with a refrigerant, and the second variable cavity is provided with no refrigerant; when the pressure of the first variable cavity is smaller than a first threshold value and the pressure of the second variable cavity is larger than a second threshold value, the processor determines that no refrigerant exists in the first variable cavity, and the refrigerant exists in the second variable cavity; when the pressure of the first variable cavity is larger than a first threshold value and the pressure of the second variable cavity is larger than a second threshold value, the processor determines that the refrigerant exists in the first variable cavity and the second variable cavity; and under the condition that the pressure of the first variable cavity is smaller than a first threshold value and the pressure of the second variable cavity is smaller than a second threshold value, the processor determines that no refrigerant exists in the first variable cavity and the second variable cavity.
Thus, when the pressure of the first variable cavity is greater than the first threshold value and the pressure of the second variable cavity is less than the second threshold value, the pressure in the first variable cavity is greater at this time, and the pressure in the second variable cavity is smaller, which means that the refrigerant exists in the first variable cavity and the refrigerant does not exist in the second variable cavity at this time. And when the pressure of the first variable cavity is smaller than the first threshold value and the pressure of the second variable cavity is larger than the second threshold value, the pressure in the first variable cavity is smaller at the moment, and the pressure in the second variable cavity is larger, which means that no refrigerant exists in the first variable cavity at the moment and the refrigerant exists in the second variable cavity. Under the condition that the pressure of the first variable cavity is larger than a first threshold value and the pressure of the second variable cavity is larger than a second threshold value, at the moment, the pressure in the first variable cavity and the pressure in the second variable cavity are both larger, which means that at the moment, the refrigerant exists in the first variable cavity and the second variable cavity. And when the pressure of the first variable cavity is smaller than the first threshold value and the pressure of the second variable cavity is smaller than the second threshold value, the pressure in the first variable cavity and the pressure in the second variable cavity are smaller, which means that no refrigerant exists in the first variable cavity and the second variable cavity at the moment.
Optionally, the processor executes a corresponding refrigerant discharging operation according to a refrigerant state in the expansion tank, including: the processor controls the discharge of the refrigerant in the first variable cavity under the condition that the refrigerant is arranged in the first variable cavity and the refrigerant is not arranged in the second variable cavity; the processor controls the discharge of the refrigerant in the second variable cavity under the condition that the refrigerant is not contained in the first variable cavity and the refrigerant is contained in the second variable cavity; under the condition that the refrigerants are arranged in the first variable cavity and the second variable cavity, the processor controls the discharge of the refrigerants in the first variable cavity and then controls the discharge of the refrigerants in the second variable cavity; and under the condition that the first variable cavity and the second variable cavity are free of refrigerants, the processor exits the refrigerant discharge operation.
Like this, after the compressor cuts off the power supply suddenly, in order to avoid when the air conditioner starts next time, refrigerant in the expansion tank is compressed into in the pipeline, leads to refrigerant flow fluctuation too big to influence refrigeration effect and compressor's life, the refrigerant in the variable cavity of processor control discharge first and the variable cavity of second guarantees the normal operating of air conditioner.
Optionally, the processor controls the discharge of the refrigerant in the first variable cavity, including: the processor starts the compressor, closes the first pressure regulating valve and the second pressure regulating valve, closes the first electromagnetic valve and the third electromagnetic valve, opens the second electromagnetic valve until the pressure of the first variable cavity is smaller than a first threshold value, controls the compressor to stop, opens the first electromagnetic valve and the third electromagnetic valve, and closes the second electromagnetic valve.
In this way, the processor turns on the compressor, turns off the first pressure regulating valve and the second pressure regulating valve, and avoids new refrigerant from entering the first variable cavity and the second variable cavity. And closing the first electromagnetic valve and the third electromagnetic valve to prevent the refrigerant discharged from the first variable cavity from entering the evaporator or the condenser. And opening the second electromagnetic valve to enable the expansion tank to be communicated with the air return pipe, and recovering the refrigerant in the first variable cavity to the compressor through negative pressure of air return of the compressor, so as to discharge the refrigerant in the first variable cavity. And controlling the compressor to stop, opening the first electromagnetic valve and the third electromagnetic valve, and closing the second electromagnetic valve until the pressure of the first variable cavity is smaller than a first threshold value, and at the moment, discharging the refrigerant in the first variable cavity.
Optionally, the processor controls the discharge of the refrigerant in the second variable cavity, including: the processor starts the compressor, starts the first pressure regulating valve and the second pressure regulating valve, closes the second electromagnetic valve and the third electromagnetic valve, starts the first electromagnetic valve until the pressure of the second variable cavity is smaller than a second threshold value, controls the compressor to stop, starts the third electromagnetic valve, and closes the second electromagnetic valve.
Thus, the processor starts the compressor, starts the first pressure regulating valve and the second pressure regulating valve, closes the second electromagnetic valve and the third electromagnetic valve, and starts the first electromagnetic valve, at this time, the refrigerant enters the first variable cavity from the exhaust branch pipe, the volume of the first variable cavity is increased, the second variable cavity is compressed, the refrigerant in the second variable cavity flows out from the second end of the expansion tank, flows through the throttling element and the evaporator in sequence, and then returns to the compressor liquid storage tank. The pressure of the second variable cavity is smaller than a second threshold value, and the fact that the refrigerant in the second variable cavity is basically exhausted is indicated at the moment, so that the processor controls the compressor to stop, opens the third electromagnetic valve, closes the second electromagnetic valve, and enables the air conditioner to recover to a normal stop state.
In the practical application process, the air conditioner is suddenly powered off in the normal refrigerating or heating process, and the pressure P of the first variable cavity in the expansion tank is firstly controlled by the power-off memory function 1 And pressure P of the second variable chamber 2 The judgment is carried out, the judgment is respectively compared with a first threshold value Q1 and a second threshold value Q2, and corresponding operations are executed according to the comparison result, specifically as follows: (1) If P 1 ＞Q1，P 2 And Q2 is less than that of the first variable cavity, the second variable cavity has no refrigerant, the compressor is running, the first pressure regulating valve and the second pressure regulating valve are closed, the first electric power is supplied to the compressorThe magnetic valve and the third electromagnetic valve are closed, and the second electromagnetic valve is opened until P 1 And less than Q1, stopping the compressor, opening the first electromagnetic valve and the third electromagnetic valve, closing the second electromagnetic valve, and enabling the air conditioner to enter a normal running state. (2) If P 1 ＜Q1，P 2 Q2, the refrigerant in the second variable cavity is present, the refrigerant in the first variable cavity is absent, the compressor is operated, the first pressure regulating valve and the second pressure regulating valve are opened, the second electromagnetic valve and the third electromagnetic valve are closed, until P 1 And after Q2, discharging the refrigerant in the second variable cavity. Wherein, after the operation of (2) is completed, P is the same as that of P 1 ＞Q1，P 2 And Q2, therefore, the operation of (1) is also performed to discharge the refrigerant in the first variable chamber, avoiding the refrigerant residue. (3) If P 1 ＞Q1，P 2 And (2) the operation of (2) is performed to discharge the refrigerant in the second variable cavity, and then the operation of (1) is performed to discharge the refrigerant in the first variable cavity, so that the refrigerant in the expansion tank is discharged entirely. (4) If P 1 ＜Q1，P 2 And less than Q2, the first variable cavity and the second variable cavity are free of refrigerants, and the air conditioner can normally operate at the moment.
As shown in connection with fig. 5, an embodiment of the present disclosure provides an apparatus 300 for controlling an air conditioner, including a processor (processor) 301 and a memory (memory) 101. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 102 and a bus 103. The processor 301, the communication interface 102, and the memory 101 may communicate with each other via the bus 103. The communication interface 102 may be used for information transfer. The processor 301 may call logic instructions in the memory 101 to perform the method for controlling an air conditioner of the above-described embodiment.
Further, the logic instructions in the memory 101 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 101 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 301 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, i.e., implements the method for controlling an air conditioner in the above-described embodiment.
The memory 101 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. Further, the memory 101 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 apparatus 300 for controlling an air conditioner. The apparatus 300 for controlling an air conditioner is installed at an air conditioner body. The mounting relationship described herein is not limited to being placed inside the air conditioner, but also includes mounting connections with other components of the air conditioner, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art will appreciate that the apparatus 300 for controlling an air conditioner may be adapted to a viable body of an air conditioner, 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.
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 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 the like, which can store program codes.
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 application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. 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, characterized in that the air conditioner comprises an expansion tank, a first end of which is connected with an exhaust branch pipe of a compressor, which is provided with a first pressure regulating valve, and a second end of which is connected with a pipeline between a condenser and a throttling element through a first pipeline provided with a second pressure regulating valve; the method comprises the following steps:
detecting the exhaust temperature of the compressor under the condition that the air conditioner is in operation;
and controlling the refrigerant to enter the expansion tank under the condition that the fluctuation value of the exhaust temperature is smaller than the first temperature.
2. The method of claim 1, wherein the expansion tank includes a liner dividing the expansion tank into a first variable cavity connected to the exhaust manifold and a second variable cavity connected to the first conduit; the control refrigerant enters the expansion tank, comprising:
determining a second pressure of the second variable cavity;
and opening the second pressure regulating valve until the pressure of the second variable cavity reaches the second pressure, and closing the second pressure regulating valve.
3. The method of claim 2, wherein determining the second pressure of the second variable cavity comprises:
acquiring current operation parameters of an air conditioner;
determining a second pressure corresponding to the current operation parameter according to a preset second relation;
Wherein the current operating parameters include an operating frequency of the compressor and/or a system pressure and/or a discharge temperature of the compressor.
4. The method of claim 2, wherein the air conditioner includes a third solenoid valve disposed on a line between the condenser and the compressor; the method further comprises the steps of:
under the condition that the operation of the air conditioner is finished, the first pressure regulating valve and the second pressure regulating valve are opened, and the third electromagnetic valve is closed;
detecting the pressure of the second variable cavity;
and closing the first pressure regulating valve and the second pressure regulating valve when the pressure of the second variable cavity is smaller than a second threshold value.
5. The method of claim 4, wherein the air conditioner comprises a first solenoid valve disposed on a line between the evaporator and the compressor and a second solenoid valve disposed on a pressure relief line; one end of the pressure relief pipe is connected with a pipeline between the first pressure regulating valve and the first end, and the other end of the pressure relief pipe is connected with an air return pipe of the compressor; and when the pressure of the second variable cavity is smaller than the second threshold value, closing the first pressure regulating valve and the second pressure regulating valve, and then further comprising:
closing the first electromagnetic valve and opening the second electromagnetic valve;
Detecting a pressure of the first variable cavity;
and under the condition that the pressure of the first variable cavity is smaller than a first threshold value, closing the second electromagnetic valve, opening the first electromagnetic valve and the third electromagnetic valve, and controlling the compressor to stop.
6. The method according to any one of claims 2 to 5, further comprising:
under the condition of power failure in the running process of the air conditioner, determining the state of the refrigerant in the expansion tank;
and executing corresponding refrigerant discharge operation according to the refrigerant state in the expansion tank.
7. The method of claim 6, wherein determining the refrigerant condition in the expansion tank comprises:
detecting the pressure of the first variable cavity and the pressure of the second variable cavity;
and determining the refrigerant state in the expansion tank according to the pressure of the first variable cavity and the pressure of the second variable cavity.
8. 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 7 when the program instructions are run.
9. An air conditioner, comprising:
the air conditioner body comprises an expansion tank, wherein the first end of the expansion tank is connected with an exhaust branch pipe of the compressor, which is provided with a first pressure regulating valve, and the second end of the expansion tank is connected with a pipeline between the condenser and the throttling element through a first pipeline, which is provided with a second pressure regulating valve; the method comprises the steps of,
The apparatus for controlling an air conditioner as claimed in claim 8, mounted to the air conditioner body.
10. A computer readable storage medium storing program instructions which, when executed, are adapted to cause a computer to carry out the method for controlling an air conditioner according to any one of claims 1 to 7.
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| CN202311166760.5A CN117366802A (en) | 2023-09-11 | 2023-09-11 | Method and device for controlling air conditioner, air conditioner and computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311166760.5A CN117366802A (en) | 2023-09-11 | 2023-09-11 | Method and device for controlling air conditioner, air conditioner and computer readable storage medium |
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