WO2022110474A1 - 空调室外机、室内机、空调器及控制方法、可读存储介质 - Google Patents
空调室外机、室内机、空调器及控制方法、可读存储介质 Download PDFInfo
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- WO2022110474A1 WO2022110474A1 PCT/CN2020/140471 CN2020140471W WO2022110474A1 WO 2022110474 A1 WO2022110474 A1 WO 2022110474A1 CN 2020140471 W CN2020140471 W CN 2020140471W WO 2022110474 A1 WO2022110474 A1 WO 2022110474A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air conditioner
- throttling
- heat exchanger
- outdoor unit
- indoor unit
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Definitions
- the present application relates to the technical field of air conditioners, and in particular, to an air conditioner outdoor unit, an air conditioner indoor unit, an air conditioner, a control method thereof, and a readable storage medium.
- the outdoor unit of the air conditioner if the outdoor unit of the air conditioner is damaged, it needs to be replaced with a new outdoor unit. If the flow parts are not used, the air conditioner will not operate normally, thus weakening the matching compatibility of the outdoor unit of the air conditioner.
- the main purpose of this application is to propose an air conditioner outdoor unit, which aims to solve the technical problem of how to improve the matching compatibility of the air conditioner outdoor unit.
- the outdoor unit of the air conditioner proposed by the present application includes:
- the outdoor heat exchanger is used to communicate with the indoor heat exchanger of the indoor unit of the air conditioner to form a refrigerant circuit
- a first throttling component connected in series with the outdoor heat exchanger
- the first on-off valve is connected in parallel with the first throttle member.
- the first throttling member is provided at the outlet of the outdoor heat exchanger in the cooling mode.
- the present application also proposes an air conditioner, including an air conditioner indoor unit and an air conditioner outdoor unit.
- the air conditioner outdoor unit includes: an outdoor heat exchanger, which is used for connecting with the indoor heat exchanger of the air conditioner indoor unit to form a refrigerant circuit; Section 1 a flow part, connected in series with the outdoor heat exchanger; a first on-off valve, connected in parallel with the first throttle part; the air conditioner indoor unit has an indoor heat exchanger, and the indoor heat exchanger is connected to the The outdoor heat exchanger of the outdoor unit of the air conditioner is connected.
- the air conditioner indoor unit further includes a second throttle member connected in series with the indoor heat exchanger.
- the air conditioner indoor unit further includes a second on-off valve connected in parallel with the second throttle member.
- the application also proposes an air conditioner indoor unit, comprising:
- the indoor heat exchanger is used to communicate with the outdoor heat exchanger of the outdoor unit of the air conditioner to form a refrigerant circuit
- a throttling component connected in series with the indoor heat exchanger
- An on-off valve is connected in parallel with the throttling component.
- the application also proposes a control method for an air conditioner, comprising:
- the first throttling component is activated, and the first on-off valve is closed; wherein, the first throttling component is arranged on the outdoor unit of the air conditioner and is connected in series with the outdoor heat exchanger, and the first on-off valve is connected in parallel with the first throttling component.
- the step of activating the first throttle member includes: adjusting the first throttle member to a minimum opening degree.
- the step further includes: adjusting the second throttling member to a maximum opening degree; wherein the second throttling member is arranged in the air-conditioning room The machine is connected in series with the indoor heat exchanger.
- the application also proposes a control method for an air conditioner, comprising:
- the second throttling component Activate the second throttling component, and open the first on-off valve in parallel with the first throttling component; wherein, the second throttling component is arranged in the indoor unit of the air conditioner and is connected in series with the indoor heat exchanger, and the first throttling component is arranged outside the air conditioner The machine is connected in series with the outdoor heat exchanger.
- the method further includes:
- the step further includes:
- the first throttling member is activated, and the first on-off valve is closed.
- the step of activating the first throttling component includes:
- the step of judging whether the second throttle component is faulty according to the operating parameters of the air conditioner includes:
- the step of detecting the superheat degree of the first return air of the air conditioner after the air conditioner runs for a preset period of time includes:
- the preset duration is set to the first duration
- the first duration is shorter than the second duration.
- the method before the step of setting the preset duration as the first duration, the method further includes:
- the present application also proposes an air conditioner, which includes a processor, a memory, and a control program for the air conditioner stored in the memory and running on the processor.
- the control program for the air conditioner is executed by the processor, the above is realized. The steps of the control method of the air conditioner.
- the present application also proposes a readable storage medium, where the readable storage medium stores a control program of an air conditioner, and when the control program of an air conditioner is executed by a processor, implements the steps of the above-mentioned control method for an air conditioner.
- the air conditioner outdoor unit of the present application is provided with a first on-off valve in parallel with the first throttle member. If the air conditioner indoor unit connected to the air conditioner outdoor unit is equipped with a throttle member itself, the first throttle member can be closed and the first throttle member can be opened by opening the first throttle member.
- FIG. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present application.
- FIG. 2 is a schematic flowchart of an embodiment of an air conditioner control method of the present application
- FIG. 3 is a schematic flowchart of another embodiment of the air conditioner control method of the present application.
- FIG. 4 is a schematic flowchart of another embodiment of the air conditioner control method of the present application.
- FIG. 5 is a schematic flowchart of still another embodiment of the air conditioner control method of the present application.
- FIG. 6 is a schematic flowchart of still another embodiment of the air conditioner control method of the present application.
- the present application proposes an air conditioner outdoor unit 10 .
- the air conditioner outdoor unit 10 includes: an outdoor heat exchanger 11 , which is used to communicate with the indoor heat exchanger 21 of the air conditioner indoor unit 20 to form a refrigerant circuit; a first throttle component 12 , which is connected in series with the outdoor heat exchanger 11 ; the first on-off valve 13 is connected in parallel with the first throttling member 12 .
- the air conditioner outdoor unit 10 includes a casing, and the outdoor heat exchanger 11 is provided in the casing of the air conditioner outdoor unit 10, and communicates with the indoor heat exchanger 21 of the air conditioner indoor unit 20 through a refrigerant pipe to form a refrigerant circuit.
- the air conditioner outdoor unit 10 is also provided with a compressor and a four-way valve.
- the exhaust port and the air return port of the compressor are communicated with the indoor heat exchanger 21 and the outdoor heat exchanger 11 through the four-way valve, and the four-way valve is used to realize the operation of the compressor.
- the exhaust port and the air return port are in switching communication with the indoor heat exchanger 21 and the outdoor heat exchanger 11, so as to realize the switching between the cooling mode and the heating mode of the air conditioner.
- the refrigerant is compressed by the compressor and converted into high-temperature and high-pressure gas, enters the outdoor heat exchanger 11 through the four-way valve to absorb cold and release heat, and then converts into a low-temperature and low-pressure liquid state, and enters the indoor exchange.
- the heater 21 absorbs heat and releases cooling, and then converts into low-temperature and low-pressure gas, which flows back to the liquid storage tank through the four-way valve, thereby realizing the refrigeration cycle of the refrigerant.
- the liquid storage tank is used to separate gaseous and liquid refrigerants, so that the compressor can normally inhale gaseous refrigerants for compression and transportation.
- the specific form of the first throttle member 12 is not limited, and can be a throttle valve or an electronic expansion valve.
- the first throttling member 12 is connected in series on the refrigerant circuit, and the flow rate of the refrigerant is controlled by changing the throttling section or the throttling length. cooling or heating capacity.
- the first throttling component 12 is provided at the outlet of the outdoor heat exchanger 11 to control the refrigerant flow from the outdoor heat exchanger 11 to the indoor heat exchanger 21.
- the opening degree of the throttle member 12 can indirectly control the cooling capacity of the indoor heat exchanger 21 .
- the first throttling component 12 will automatically adjust according to the refrigerant pressure and temperature control instructions, so as to maintain the cooling capacity of the indoor heat exchanger 21 at the temperature set by the user.
- the first on-off valve 13 is provided on the bypass flow path connected in parallel with the first throttle member 12 to control the opening and closing of the bypass flow path.
- the first on-off valve 13 is a two-way valve, so that when the first on-off valve 13 is opened, the bypass flow path can allow refrigerant to flow through in both the cooling mode and the heating mode.
- the first on-off valve 13 may be configured as a solenoid valve to realize remote control through electrical connection with the controller of the air conditioner.
- the refrigerant mainly passes through the bypass flow path, and the first throttling member 12 cannot play the role of throttling control; when the first solenoid valve is closed, the refrigerant can only pass through the first throttling member 12 passes, at this time, the first throttling component 12 can normally adjust the refrigerant flow.
- the user can determine the working state of the first throttle component 12 and the first on-off valve 13 according to whether the air conditioner indoor unit 20 has a throttle function.
- the air conditioner indoor unit 20 is not equipped with a throttling component, and the first throttling component 12 needs to be used to realize the throttling function of the air conditioner. At this time, the first throttling component 12 needs to be opened, and the first on-off valve 13 needs to be closed. , so that the refrigerant in the refrigerant circuit can flow through the first throttling component 12 to achieve flow control.
- the air conditioner indoor unit 20 is already equipped with a throttling member, and the second throttling member 22 does not need to work at this time, so the first on-off valve 13 can be opened, so that the refrigerant mainly passes through the bypass flow path without being affected by The first throttling member 12 affects; the first throttling member 12 can be adjusted to any opening degree, which is not limited here.
- the air conditioner indoor unit 20 has been equipped with a throttling component, but the user still wants to control the refrigerant flow rate through the first throttling component 12.
- the first throttling component 12 can also be opened, and the first on-off valve can be closed. 13, and keep the throttling member of the air conditioner indoor unit 20 at the preset opening.
- the first throttle component 12 can continue to control the refrigerant flow to keep the air conditioner of normal operation.
- the first throttling member 12 that plays a major role in throttling fails, the throttling member of the air conditioner indoor unit 20 can continue to control the refrigerant flow rate; thus, the stability of the air conditioner can be improved.
- the air conditioner outdoor unit 10 of the present application is provided with the first on-off valve 13 connected in parallel with the first throttle member 12. If the air conditioner indoor unit 20 connected to the air conditioner outdoor unit 10 is equipped with a throttle member, the first valve can be closed If the connected indoor unit 20 of the air conditioner does not have a throttling component, it can be used as the first throttling component 12 and close the first throttling component 12.
- An on-off valve 13 is used to make the outdoor unit 10 of the air conditioner throttling; thus, the outdoor unit 10 of the air conditioner can be compatible with the indoor unit 20 of the air conditioner of different models or manufacturers, which improves the matching compatibility of the outdoor unit 10 of the air conditioner.
- the present application also proposes an air conditioner, which includes an air conditioner indoor unit 20 and an air conditioner outdoor unit 10.
- the specific structure of the air conditioner outdoor unit 10 refers to the above-mentioned embodiments, because the air conditioner adopts all the technical solutions of all the above-mentioned embodiments. , so at least all the beneficial effects brought by the technical solutions of the above embodiments are provided, which will not be repeated here.
- the air conditioner indoor unit 20 has an indoor heat exchanger 21, and the indoor heat exchanger 21 communicates with the outdoor heat exchanger 11 of the air conditioner outdoor unit 10 through a refrigerant pipe.
- the air conditioner indoor unit 20 further includes a second throttle member 22 connected in series with the indoor heat exchanger 21 .
- the second throttling member 22 is provided at the inlet of the indoor heat exchanger 21 in the cooling mode.
- the heat exchanger 21 has the function of cooling or heating. It can be understood that when the air conditioner is working, only one of the first throttling component 12 and the second throttling component 22 is required to work, and the other can be used as a spare throttling component. Thereby, the operation stability of the air conditioner can be improved.
- the air conditioner indoor unit 20 further includes a second on-off valve connected in parallel with the second throttle member 22 .
- the second on-off valve is arranged on the bypass flow channel connected in parallel with the second throttling member 22. If the refrigerant flow is controlled by the first throttling member 12, the second on-off valve can be opened, and the refrigerant is mainly It flows through the bypass flow channel to reduce the influence of the second throttle member 22 .
- both the air conditioner indoor unit 20 and the air conditioner outdoor unit 10 are already equipped with the throttle member and Therefore, regardless of whether the replaced air conditioner indoor unit 20 or air conditioner outdoor unit 10 has throttling components, the original air conditioner indoor unit 20 or air conditioner outdoor unit 10 can be compatible and matched to reduce the air conditioner indoor unit 20 or air conditioner Matching difficulty of the outdoor unit 10 .
- an air conditioner indoor unit 20 which includes: an indoor heat exchanger 21 for communicating with the outdoor heat exchanger 11 of the air conditioner outdoor unit 10 to form a refrigerant circuit;
- the heat exchanger 21 is connected in series; the switch valve is connected in parallel with the throttling component.
- the functions of the throttling member and the on-off valve in this embodiment are the same as those of the first throttling member 12 and the on-off valve in the above-mentioned embodiment. Therefore, the air conditioner indoor unit 20 can also achieve the same function as the above-mentioned embodiment.
- the technical effect corresponding to the outdoor unit 10 of the air conditioner for example, regardless of whether the outdoor unit 10 of the air conditioner has a throttling function, the indoor unit 20 of the air conditioner of the present application can be compatible with it, and the working state of the throttling component and the on-off valve can be determined according to the actual situation ; For details, reference may be made to the above-mentioned embodiments, which will not be repeated here.
- the air conditioner of the present application may also include: a processor, a memory, and a communication bus; wherein, the processor may be a CPU, and the communication bus is used to realize the connection and communication between the various components in the air conditioner, and the memory may be a RAM memory, or can be non-volatile memory memory), such as disk storage.
- the memory may also be a storage device independent of the aforementioned processor.
- a control program of the air conditioner may be included in the memory as a computer storage medium.
- the processor can be used to call the control program of the air conditioner stored in the memory, and execute the control method of the air conditioner.
- the control method of the air conditioner includes the following steps:
- the power-on signal is sent by the user through the operation panel or the mobile terminal.
- the first throttling component 12 controls the flow of refrigerant by default before it is turned on. Therefore, the air conditioner will directly close the first on-off valve 13 and start the first throttling after it is turned on. component 12, at this time all the refrigerant flows through the first throttling component 12.
- the first throttling member 12 is located at the outlet of the outdoor heat exchanger 11 in the cooling mode to control the amount of refrigerant flowing from the outdoor heat exchanger 11 to the indoor heat exchanger 21 in the cooling mode, and from the indoor heat exchanger in the heating mode 21 is the amount of refrigerant flowing to the outdoor heat exchanger 11.
- the throttling function can be realized by the outdoor unit 10 through a preset program setting before starting up. If the air conditioner indoor unit 20 and the air conditioner outdoor unit 10 cannot be communicatively connected, the air conditioner outdoor unit 10 can be preset to realize the throttling function by manual dialing before starting the machine; the above two methods can make the air conditioner
- the throttling member 12 closes the first on-off valve 13 .
- the step of starting the first throttling component 12 includes:
- the system pressure of the refrigerant circuit is relatively small, and the first throttling component 12 itself can automatically adjust the opening degree according to the system pressure, so that the refrigerant flow rate can be kept at the preset value of the user. Therefore, when the air conditioner is just turned on, the first throttling part 12 is adjusted to the lowest opening degree, so that the initial opening degree of the first throttling part 12 can be synchronized with the initial pressure of the system, so that it can be faster
- the refrigerant flow direction is synchronously adjusted with the system pressure change.
- the minimum opening degree refers to the lowest gear position that can be achieved among the opening degree gears of the first throttle member 12 , that is, the minimum opening degree is greater than the zero opening degree, so as to ensure the normal flow of the refrigerant.
- the steps further include:
- the second throttle member 22 is The component 22 is kept at the maximum opening degree, thus, the resistance to the refrigerant can be reduced to the minimum, so as to ensure the normal control of the refrigerant flow by the first throttle component 12 .
- control method of the air conditioner includes the following steps:
- the air conditioner outdoor unit 10 is equipped with the first throttle member 12
- the air conditioner indoor unit 20 is equipped with the second throttle member 22 .
- the second throttling component 22 controls the flow of refrigerant by default before starting up. Therefore, the air conditioner will directly open the first on-off valve 13 after starting up. At this time, all the refrigerant flows through the bypass flow path where the first on-off valve 13 is located.
- the second throttling part 22 is located at the inlet of the indoor heat exchanger 21 in the cooling mode to control the amount of refrigerant flowing from the outdoor heat exchanger 11 to the indoor heat exchanger 21 in the cooling mode and from the indoor heat exchanger in the heating mode 21 is the amount of refrigerant flowing to the outdoor heat exchanger 11.
- the throttling function can be realized by the indoor unit 20 of the air conditioner through a preset program setting before starting up;
- the air conditioner indoor unit 20 realizes the throttling function by manual dialing before starting up; the above two methods can enable the air conditioner to turn on the second throttling component 22 and close the first on-off valve 13 after the air conditioner is turned on.
- the step further includes:
- the throttle control function is performed by the second throttle member 22, and at this time, the opening degree of the first throttle member 12 is in a state where the opening degree cannot be adjusted. If the refrigerant flows through the first throttling member 12 and the bypass flow path at the same time, the original pressure of the refrigerant circuit may be reduced due to the diversion. Therefore, setting the first throttling member 12 to zero opening can make all the refrigerant Passing through the bypass flow path, there is no need to divide the flow to ensure that the system pressure is normal, thereby ensuring the stable operation of the air conditioner.
- the step further includes:
- the obtained operating parameters are not limited, and the specific method for judging whether the second throttling member 22 is faulty according to the operating parameters is also not limited, and it is only necessary to be willing to judge whether the second throttling member 22 is faulty; for example; In other words, after the air conditioner has been running for a period of time, the cooling temperature of the air conditioner indoor unit 20 has not yet reached the target temperature preset by the user. At this time, it can be determined that the second throttling component 22 is faulty. The second throttling member 22 is faulty, that is, the opening of the second throttling member 22 is no longer automatically adjusted with the system pressure and the preset temperature.
- the air conditioner will open the first throttling member 12 to control the refrigerant flow, and close the first throttling member 12.
- the valve 13 is switched on and off, so that the refrigerant flow is all under the control of the first throttling member 12 .
- the first throttle member 12 of the air conditioner outdoor unit 10 can still perform the flow control function, so that the air conditioner can continue to operate.
- the step of starting the first throttling component 12 includes:
- the air conditioner cannot determine the system pressure state when the second throttling member 22 fails. If the first throttling member 12 is opened, the system pressure is relatively high, and the initial opening of the first throttling member 12 is relatively small. , it is easy to cause the system pressure to be too high, causing the air conditioner to enter the shutdown protection state. Therefore, the initial opening degree of the first throttling member 12 to control the flow of refrigerant should be set to the maximum opening degree, and then the first throttling member 12 can automatically adjust the opening degree according to the system pressure, so as to ensure the relay control of the first throttling member 12 the stability of the air conditioner's operation.
- the step of judging whether the second throttle component 22 is faulty according to the operating parameters of the air conditioner includes:
- the first return air superheat is equal to the actual return air temperature of the refrigerant minus the saturation temperature corresponding to the system pressure. If the second throttling component 22 can control the flow of refrigerant normally, the first return air superheat will be greater than or equal to the first threshold; therefore, if the first return air superheat is less than the first threshold, the second throttling component 22 is faulty.
- the return air superheat can more accurately and reliably reflect the adjustment result of the second throttling component 22. Therefore, by detecting the return air superheat to determine whether the second throttling component 22 is faulty, the judgment process can be made faster and the judgment result more accurate. .
- the step of detecting the superheat degree of the first return air of the air conditioner after the air conditioner runs for a preset period of time includes:
- S812 Determine that the air conditioner indoor unit 20 is communicating with the air conditioner outdoor unit 10, and set the preset duration as the first duration;
- S813 It is determined that the air conditioner indoor unit 20 and the air conditioner outdoor unit 10 are not in communication, and the preset duration is set to a second duration, wherein the first duration is less than the second duration.
- the controller of the air conditioner outdoor unit 10 can control the second throttle member 22 to adjust to the preset opening degree, and run for the first operating time period. Then, it is judged whether the superheat degree of the first return air reaches the first threshold value, and the first operation duration is the time required for the system pressure to reach equilibrium under the preset opening degree. If the air conditioner indoor unit 20 does not communicate with the air conditioner outdoor unit 10, it means that the controller of the air conditioner outdoor unit 10 cannot control the second throttle member 22.
- the second duration is set to be longer than the first duration to ensure that the system is in a pressure equilibrium state when the first return air superheat is detected.
- the first duration may be set to 150 seconds to 200 seconds
- the second duration may be set to 800 seconds to 1000 seconds.
- step of setting the preset duration to the first duration further includes:
- the air conditioner is operated for a first period of time, and then it is judged whether the superheat degree of the first return air reaches the first threshold; since the second throttling member 22 is a The minimum opening, at this time the refrigerant throughput is the smallest. If the second throttling member 22 is not faulty, the system pressure can reach the equilibrium state in the shortest time; therefore, adjusting the second throttling member 22 to the minimum opening can shorten the judgment time, so that the first throttle member 12 can take over the control faster when the second throttle member 22 fails, so that the air conditioner enters the normal operation state faster.
- the present application also provides an air conditioner, the air conditioner includes a processor, a memory, and a control program of the air conditioner stored in the memory and executable on the processor, and the control program of the air conditioner is controlled by the processor When executed, the steps of the control method of the air conditioner described in the above embodiment are realized.
- the present application also proposes a readable storage medium, where the readable storage medium stores an air conditioner control program, and when the air conditioner control program is executed by a processor, implements the steps of the air conditioner control method as described above.
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Abstract
本申请公开一种空调室外机、空调室内机、空调器及其控制方法、可读存储介质,空调室外机包括:室外换热器,用以与空调室内机的室内换热器连通形成冷媒回路;第一节流部件,与所述室外换热器串联;第一开关阀,与所述第一节流部件并联。本申请空调室外机通过设置与第一节流部件并联的第一开关阀,若与该空调室外机连接的空调室内机自身配备有节流部件,则可通过关闭第一节流部件、打开第一开关阀来使空调室外机不起节流作用;若所连接的空调室内机不具有节流部件,则可通过起到第一节流部件、关闭第一开关阀来使空调室外机起节流作用;由此,空调室外机与不同型号或产商的空调室内机均能兼容匹配,提高了空调室外机的匹配兼容性。
Description
本申请要求2020年11月24日申请的,申请号为202011333619.6,名称为“空调室外机、室内机、空调器及控制方法、可读存储介质”的中国专利申请的优先权,在此将其全文引入作为参考。
本申请涉及空调技术领域,特别涉及一种空调室外机、空调室内机、空调器及其控制方法、可读存储介质。
相关技术中,若空调室外机损坏,则需要更换新的空调室外机,但对于自身已配备节流部件的空调室内机,在更换空调室外机时,若更换后的空调室外机也配备有节流部件,将导致空调器无法正常运行,由此,减弱了空调室外机的匹配兼容性。
本申请的主要目的是提出一种空调室外机,旨在解决如何提高空调室外机匹配兼容性的技术问题。
为实现上述目的,本申请提出的空调室外机包括:
室外换热器,用以与空调室内机的室内换热器连通形成冷媒回路;
第一节流部件,与所述室外换热器串联;
第一开关阀,与所述第一节流部件并联。
在一实施例中,所述第一节流部件设于所述室外换热器在制冷模式时的出口处。
本申请还提出一种空调器,包括空调室内机及一种空调室外机,该空调室外机包括:室外换热器,用以与空调室内机的室内换热器连通形成冷媒回路;第一节流部件,与所述室外换热器串联;第一开关阀,与所述第一节流部件并联;所述空调室内机具有室内换热器,所述室内换热器通过冷媒管与所述空调室外机的室外换热器连通。
在一实施例中,所述空调室内机还包括与所述室内换热器串联的第二节流部件。
在一实施例中,所述空调室内机还包括与所述第二节流部件并联的第二开关阀。
本申请还提出一种空调室内机,包括:
室内换热器,用以与空调室外机的室外换热器连通形成冷媒回路;
节流部件,与所述室内换热器串联;
开关阀,与所述节流部件并联。
本申请还提出一种空调器的控制方法,包括:
获取开机信号;
启动第一节流部件,关闭第一开关阀;其中,第一节流部件设于空调室外机并与室外换热器串联,第一开关阀与第一节流部件并联。
在一实施例中,所述启动第一节流部件的步骤包括:将第一节流部件调至最低开度。
在一实施例中,所述启动第一节流部件,关闭第一开关阀的步骤之后,还包括:将第二节流部件调至最大开度;其中,第二节流部件设于空调室内机并与室内换热器串联。
本申请还提出一种空调器的控制方法,包括:
获取开机信号;
启动第二节流部件,打开与第一节流部件并联的第一开关阀;其中,第二节流部件设于空调室内机并与室内换热器串联,第一节流部件设于空调室外机并与室外换热器串联。
在一实施例中,所述启动第二节流部件,打开与第一节流部件并联的第一开关阀的步骤之后,还包括:
将第一节流部件设置为零开度。
在一实施例中,所述启动第二节流部件,打开第一开关阀的步骤之后,还包括:
获取空调器的运行参数;
根据空调器的运行参数判断第二节流部件是否故障;
确定第二节流部件故障时,启动第一节流部件,关闭第一开关阀。
在一实施例中,所述启动第一节流部件的步骤包括:
将第一节流部件调至最大开度。
在一实施例中,所述根据空调器的运行参数判断第二节流部件是否故障的步骤包括:
在空调器运行预设时长后,检测空调器的第一回气过热度;
确定第一回气过热度小于第一阈值,则判断第二节流部件故障。
在一实施例中,所述在空调器运行预设时长后,检测空调器的第一回气过热度的步骤包括:
获取空调室内机与空调室外机的通讯状态;
确定空调室内机与空调室外机通讯中,将预设时长设置为第一时长;
确定空调室内机与空调室外机未通讯,将预设时长设置为第二时长;
其中,第一时长小于第二时长。
在一实施例中,所述将预设时长设置为第一时长的步骤之前,还包括:
将第二节流部件调至最小开度。
本申请还提出一种空调器,包括处理器、存储器以及存储在所述存储器并可在所述处理器上运行的空调器的控制程序,所述空调器的控制程序被处理器执行时实现如上所述的空调器的控制方法的步骤。
本申请还提出一种可读存储介质,所述可读存储介质存储有空调器的控制程序,所述空调器的控制程序被处理器执行时实现如上所述的空调器的控制方法的步骤。
本申请空调室外机通过设置与第一节流部件并联的第一开关阀,若与该空调室外机连接的空调室内机自身配备有节流部件,则可通过关闭第一节流部件、打开第一开关阀来使空调室外机不起节流作用;若所连接的空调室内机不具有节流部件,则可通过起到第一节流部件、关闭第一开关阀来使空调室外机起节流作用;由此,空调室外机与不同型号或产商的空调室内机均能兼容匹配,提高了空调室外机的匹配兼容性。
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。
图1为本申请空调器一实施例的结构示意图;
图2为本申请空调器控制方法一实施例的流程示意图;
图3为本申请空调器控制方法另一实施例的流程示意图;
图4为本申请空调器控制方法又一实施例的流程示意图;
图5为本申请空调器控制方法再一实施例的流程示意图;
图6为本申请空调器控制方法再一实施例的流程示意图。
附图标号说明:
| 标号 | 名称 | 标号 | 名称 | 标号 | 名称 |
| 10 | 空调室外机 | 11 | 室外换热器 | 20 | 空调室内机 |
| 21 | 室内换热器 | 12 | 第一节流部件 | 13 | 第一开关阀 |
| 22 | 第二节流部件 |
本申请目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请的一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
需要说明,若本申请实施例中有涉及方向性指示(诸如上、下、左、右、前、后……),则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
另外,若本申请实施例中有涉及“第一”、“第二”等的描述,则该“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外,全文中出现的“和/或”的含义为,包括三个并列的方案,以“A和/或B为例”,包括A方案,或B方案,或A和B同时满足的方案。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本申请要求的保护范围之内。
本申请提出一种空调室外机10。
在本申请实施例中,如图1所示,该空调室外机10包括:室外换热器11,用以与空调室内机20的室内换热器21连通形成冷媒回路;第一节流部件12,与所述室外换热器11串联;第一开关阀13,与所述第一节流部件12并联。
在本实施例中,空调室外机10包括壳体,室外换热器11设于空调室外机10的壳体内,通过冷媒管与空调室内机20的室内换热器21连通形成冷媒回路。空调室外机10还设有压缩机和四通阀,压缩机的排气口及回气口通过四通阀与室内换热器21和室外换热器11连通,四通阀用以实现压缩机的排气口和回气口与室内换热器21和室外换热器11的切换连通,从而实现空调器制冷模式和制热模式的切换。举例而言,在空调器的制冷模式,冷媒通过压缩机压缩转变为高温高压的气体,通过四通阀进入室外换热器11进行吸冷放热,再转变为低温低压的液态,进入室内换热器21进行吸热放冷,再转变为低温低压的气体,通过四通阀流回储液罐,由此实现冷媒的制冷循环。储液罐用以分离气态和液态冷媒,以使压缩机能正常吸入气态冷媒进行压缩输送。
第一节流部件12的具体形式不做限制,可为节流阀或电子膨胀阀。第一节流部件12串接在冷媒回路上,通过改变节流截面或节流长度以控制冷媒流量,通过调节第一节流部件12的开度,可调节冷媒流量,从而控制空调室内机20的制冷量或制热量。举例而言,在制冷模式,第一节流部件12设于室外换热器11的出口处,以控制从室外换热器11流向室内换热器21的冷媒流量,此时,通过调节第一节流部件12的开度,可间接控制室内换热器21的制冷量。当然,在实际应用中,第一节流部件12会根据冷媒压力和温度控制指令进行自动调节,以将室内换热器21的制冷量保持在用户设定的温度。
第一开关阀13设于与第一节流部件12并联的旁通流路上,用以控制该旁通流路的通断。第一开关阀13为双通阀,以使第一开关阀13打开时,旁通流路在制冷模式和制热模式均能供冷媒流过。第一开关阀13可设置为电磁阀,以通过与空调器的控制器电连接实现远程控制。当第一电磁阀打开时,冷媒主要从旁通流路通过,此时第一节流部件12无法起到节流控制作用;当第一电磁阀关闭时,冷媒只能从第一节流部件12通过,此时第一节流部件12可正常调节冷媒流量。
空调室外机10与空调室内机20装配连接后,用户可根据空调室内机20是否具有节流功能来决定第一节流部件12和第一开关阀13的工作状态。
在一实施例中,空调室内机20未配备节流部件,需要通过第一节流部件12来实现空调器的节流功能,此时需要开启第一节流部件12,关闭第一开关阀13,以使冷媒回路的冷媒能流经第一节流部件12实现流量控制。
在另一实施例中,空调室内机20已配备节流部件,此时第二节流部件22不需要工作,因此可打开第一开关阀13,使冷媒主要从旁通流路通过,不受第一节流部件12影响;第一节流部件12可调节至任意开度,在此不做限制。
在又一实施例中,空调室内机20已配备节流部件,但用户仍想通过第一节流部件12来控制冷媒流量,此时也可开启第一节流部件12,关闭第一开关阀13,并使空调室内机20的节流部件保持预设开度。
在实际应用中,对于已配备节流部件的空调室内机20,若空调室内机20的节流部件在工作过程中出现故障,则可由第一节流部件12继续控制冷媒流量,以保持空调器的正常运行。同样地,若是起主要节流作用的第一节流部件12故障,则可由空调室内机20的节流部件继续控制冷媒流量;由此,可提高空调器的稳定性。
本申请空调室外机10通过设置与第一节流部件12并联的第一开关阀13,若与该空调室外机10连接的空调室内机20自身配备有节流部件,则可通过关闭第一节流部件12、打开第一开关阀13来使空调室外机10不起节流作用;若所连接的空调室内机20不具有节流部件,则可通过起到第一节流部件12、关闭第一开关阀13来使空调室外机10起节流作用;由此,空调室外机10与不同型号或产商的空调室内机20均能兼容匹配,提高了空调室外机10的匹配兼容性。
本申请还提出一种空调器,该空调器包括空调室内机20和空调室外机10,该空调室外机10的具体结构参照上述实施例,由于本空调器采用了上述所有实施例的全部技术方案,因此至少具有上述实施例的技术方案所带来的所有有益效果,在此不再一一赘述。其中,所述空调室内机20具有室内换热器21,所述室内换热器21通过冷媒管与所述空调室外机10的室外换热器11连通。
如图1所示,所述空调室内机20还包括与所述室内换热器21串联的第二节流部件22。在本实施例中,第二节流部件22设于室内换热器21在制冷模式时的入口处,第二节流部件22的作用与第一节流部件12相同,同样可起到控制室内换热器21制冷或制热量的作用。可以理解,在空调器工作时,只需要第一节流部件12和第二节流部件22其中一个工作即可,另一个可作为备用节流部件。由此,可提高空调器的工作稳定性。
在实际应用中,所述空调室内机20还包括与所述第二节流部件22并联的第二开关阀。在本实施例中,第二开关阀设于与第二节流部件22并联的旁通流道上,若由第一节流部件12控制冷媒流量,则第二开关阀可打开,此时冷媒主要从旁通流道流过,以减少被第二节流部件22影响。
由于第二节流部件22也并联有第二开关阀,因此,对于需要更换空调室内机20或空调室外机10的情况,由于空调室内机20和空调室外机10均已配备有节流部件和相应的开关阀,因此,不管更换后的空调室内机20或空调室外机10有无节流部件,原先的空调室内机20或空调室外机10均能兼容匹配,以降低空调室内机20或空调室外机10的匹配难度。
基于同一发明构思,本申请还提出一种空调室内机20,包括:室内换热器21,用以与空调室外机10的室外换热器11连通形成冷媒回路;节流部件,与所述室内换热器21串联;开关阀,与所述节流部件并联。
可以理解,本实施例中节流部件和开关阀的作用均与上述实施例中的第一节流部件12和开关阀的作用相同,由此,该空调室内机20也能实现与上述实施例中空调室外机10对应的技术效果;例如,无论空调室外机10是否具有节流功能,本申请空调室内机20都能与之兼容匹配,并根据实际情况确定节流部件和开关阀的工作状态;具体可参考上述实施例,在此不再赘述。
本申请空调器还可以包括:处理器、存储器及通信总线;其中,处理器可为CPU,通信总线用于实现该空调器中各组件部件之间的连接通信,存储器可以是告诉RAM存储器,也可以是稳定的存储器(non-volatile
memory),例如磁盘存储器。存储器可选的还可以是独立于前述处理器的存储装置。作为一种计算机存储介质的存储器中可以包括空调器的控制程序。
如图2所示,处理器可以用于调用存储器中存储的空调器的控制程序,并执行空调器的控制方法。该空调器的控制方法包括以下步骤:
S1,获取开机信号;
S2,启动第一节流部件12,关闭第一开关阀13;其中,第一节流部件12设于空调室外机10并与室外换热器11串联,第一开关阀13与第一节流部件12并联。
在本实施例中,开机信号由用户通过操作面板或移动终端发出。对于空调室内机20未配备节流部件的空调器,在开机前已默认由第一节流部件12控制冷媒流量,因此,开机后空调器会直接关闭第一开关阀13,启动第一节流部件12,此时冷媒全部流经第一节流部件12。第一节流部件12位于室外换热器11在制冷模式的出口处,以控制在制冷模式从室外换热器11流向室内换热器21的冷媒量,以及在制热模式从室内换热器21流向室外换热器11的冷媒量。
对于空调室内机20已配备第二节流部件22的空调器,若空调室内机20与空调室外机10能通讯连接,则可在开机前通过预设程序设置由空调室外机10实现节流功能;若空调室内机20与空调室外机10无法通讯连接,则可在开机前由人工拨码预设由空调室外机10实现节流功能;上述两种方式都能使得空调器开机后通过启动第一节流部件12,关闭第一开关阀13。
具体的,所述启动第一节流部件12的步骤包括:
S21:将第一节流部件12调至最低开度。
在本实施例中,空调器刚开机时,冷媒回路的系统压力较小,而第一节流部件12自身能根据系统压力进行开度的自动调节,以使冷媒流量能保持在用户保持预设温度所需要的流量,因此,在空调器刚开机时,将第一节流部件12调至最低开度,可使第一节流部件12的初始开度能与系统初始压力同步,从而更快地随系统压力变化进行对冷媒流向进行同步调节。可以理解,最低开度指的是第一节流部件12的开度档位中所能达到的最低档位,即最低开度大于零开度,以保证冷媒能正常流动。
如图2所示,所述启动第一节流部件12,关闭第一开关阀13的步骤之后,还包括:
S3:将第二节流部件22调至最大开度;其中,第二节流部件22设于空调室内机20并与室内换热器21串联。
在本实施例中,对于配备有第二节流部件22的空调室内机20,在开启第一节流部件12后,为避免第二节流部件22对冷媒流动造成影响,将第二节流部件22保持在最大开度,由此,可将对冷媒的阻力减少到最小,以保证第一节流部件12对冷媒流量的正常控制。
如图3所示,在另一实施例中,该空调器的控制方法包括以下步骤:
S4:获取开机信号;
S5:启动第二节流部件22,打开与第一节流部件12并联的第一开关阀13;其中,第二节流部件22设于空调室内机20并与室内换热器21串联,第一节流部件12设于空调室外机10并与室外换热器11串联。
在本实施例中,空调室外机10配备有第一节流部件12,空调室内机20配备有第二节流部件22。在开机前已默认由第二节流部件22控制冷媒流量,因此,开机后空调器会直接开启第一开关阀13,此时冷媒全部流经第一开关阀13所在的旁通流路。第二节流部件22位于室内换热器21在制冷模式的入口处,以控制在制冷模式从室外换热器11流向室内换热器21的冷媒量,以及在制热模式从室内换热器21流向室外换热器11的冷媒量。
若空调室内机20与空调室外机10能通讯连接,则可在开机前通过预设程序设置由空调室内机20实现节流功能;若空调室内机20与空调室外机10无法通讯连接,则可在开机前由人工拨码预设由空调室内机20实现节流功能;上述两种方式都能使得空调器开机后通过启动第二节流部件22,关闭第一开关阀13。
如图3所示,所述启动第二节流部件22,打开与第一节流部件12并联的第一开关阀13的步骤之后,还包括:
S6:将第一节流部件12设置为零开度。
在本实施例中,由第二节流部件22起节流控制作用,此时第一节流部件12处于开度不可调节的状态。若冷媒同时流经第一节流部件12和旁通流路,可能会因为分流造成冷媒回路的系统原有压力降低,因此,将第一节流部件12设置为零开度,可使冷媒全部从旁通流路通过,不需要分流,以保证系统压力正常,从而保证空调器稳定性运行。
如图4所示,所述启动第二节流部件22,打开第一开关阀13的步骤之后,还包括:
S7:获取空调器的运行参数;
S8:根据空调器的运行参数判断第二节流部件22是否故障;
S9:确定第二节流部件22故障时,启动第一节流部件12,关闭第一开关阀13。
在本实施例中,获取的运行参数不做限制,根据运行参数判断第二节流部件22是否故障的具体方式也不做限制,只需肯判断第二节流部件22是否故障即可;举例而言,空调器在运行一段时间后,空调室内机20的制冷温度仍未达到用户预设的目标温度,此时可判断为第二节流部件22故障。第二节流部件22故障,即第二节流部件22的开度不再随系统压力和预设温度自动调节,此时空调器会开启第一节流部件12控制冷媒流量,并关闭第一开关阀13,以使冷媒流量都处于第一节流部件12的控制下。如此,即使空调室内机20的第二节流部件22损坏,仍可由空调室外机10的第一节流部件12发挥流量控制功能,以使空调器能继续运行。
具体地,所述启动第一节流部件12的步骤包括:
S91:将第一节流部件12调至最大开度。
在本实施例中,空调器无法确定第二节流部件22故障时的系统压力状态,若第一节流部件12开启时系统压力较高,而第一节流部件12的初始开度较小,容易导致系统压力过高,造成空调器进入停机保护状态。因此,第一节流部件12刚接力控制冷媒流量的初始开度应设为最大开度,再使第一节流部件12根据系统压力自动调节开度,从而保证第一节流部件12接力控制时空调器的运行稳定性。
如图5所示,所述根据空调器的运行参数判断第二节流部件22是否故障的步骤包括:
S81:在空调器运行预设时长后,检测空调器的第一回气过热度;
S82:确定第一回气过热度小于第一阈值,则判断第二节流部件22故障。
在本实施例中,第一回气过热度等于冷媒的实际回气温度减去与系统压力所对应的饱和温度,在空调器运行预设时长后,即系统压力能达到动态平衡后,若第二节流部件22能正常控制冷媒流量,则第一回气过热度会大于或等于第一阈值;因此,若第一回气过热度小于第一阈值,说明第二节流部件22故障。回气过热度能更准确可靠地反应第二节流部件22的调节结果,因此,通过检测回气过热度来判断第二节流部件22是否故障,能使判断过程更加快速,判断结果更加准确。
如图6所示,所述在空调器运行预设时长后,检测空调器的第一回气过热度的步骤包括:
S811:获取空调室内机20与空调室外机10的通讯状态;
S812:确定空调室内机20与空调室外机10通讯中,将预设时长设置为第一时长;
S813:确定空调室内机20与空调室外机10未通讯,将预设时长设置为第二时长;其中,第一时长小于第二时长。
在本实施例中,若空调室内机20与空调室外机10处于通讯状态,则能通过空调室外机10的控制器控制第二节流部件22调至预设开度,在运行第一运行时长后,再判断第一回气过热度是否达到第一阈值,第一运行时长为在该预设开度下系统压力达到平衡所需要的时间。若空调室内机20与空调室外机10未通讯,说明无法通过空调室外机10的控制器控制第二节流部件22,由于无法确定第二节流部件22的开度,即无法预算系统压力达到平衡状态所需要的时间,因此,将第二时长设置为大于第一时长,以保证检测第一回气过热度时系统已处于压力平衡状态。在实际应用中,第一时长可设为150秒至200秒,第二时长可设为800秒至1000秒。
如图6所示,所述将预设时长设置为第一时长的步骤之前,还包括:
S812:将第二节流部件22调至最小开度。
在本实施例中,将第二节流部件22调至最小开度后,使空调器运行第一时长,再判断第一回气过热度是否达到第一阈值;由于第二节流部件22为最小开度,此时冷媒通过量最小,若第二节流部件22未故障,则系统压力能在最短时间达到平衡状态;因此,将第二节流部件22调至最小开度,能缩短判断时间,以使第一节流部件12能在第二节流部件22故障时更快地接力控制,使空调器更快进入正常运行状态。
本申请还提供一种空调器,所述空调器包括处理器、存储器以及存储在所述存储器并可在所述处理器上运行的空调器的控制程序,所述空调器的控制程序被处理器执行时实现如上实施例所述的空调器的控制方法的步骤。
本申请还提出一种可读存储介质,所述可读存储介质存储有空调器的控制程序,所述空调器的控制程序被处理器执行时实现如上所述的空调器的控制方法的步骤。
以上所述仅为本申请的可选实施例,并非因此限制本申请的专利范围,凡是在本申请的发明构思下,利用本申请说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。
Claims (18)
- 一种空调室外机,其中,包括:室外换热器,用以与空调室内机的室内换热器连通形成冷媒回路;第一节流部件,与所述室外换热器串联;以及第一开关阀,与所述第一节流部件并联。
- 如权利要求1所述的空调室外机,其中,所述第一节流部件设于所述室外换热器在制冷模式时的出口处。
- 一种空调器,其中,包括空调室内机及如权利要求1或2所述的空调室外机,所述空调室内机具有室内换热器,所述室内换热器通过冷媒管与所述空调室外机的室外换热器连通。
- 如权利要求3所述的空调器,其中,所述空调室内机还包括与所述室内换热器串联的第二节流部件。
- 如权利要求4所述的空调器,其中,所述空调室内机还包括与所述第二节流部件并联的第二开关阀。
- 一种空调室内机,其中,包括:室内换热器,用以与空调室外机的室外换热器连通形成冷媒回路;节流部件,与所述室内换热器串联;以及开关阀,与所述节流部件并联。
- 一种空调器的控制方法,其中,包括:获取开机信号;以及启动第一节流部件,关闭第一开关阀;其中,第一节流部件设于空调室外机并与室外换热器串联,第一开关阀与第一节流部件并联。
- 如权利要求7所述的空调器的控制方法,其中,所述启动第一节流部件的步骤包括:将第一节流部件调至最低开度。
- 如权利要求7所述的空调器的控制方法,其中,所述启动第一节流部件,关闭第一开关阀的步骤之后,还包括:将第二节流部件调至最大开度;其中,第二节流部件设于空调室内机并与室内换热器串联。
- 一种空调器的控制方法,其中,包括:获取开机信号;以及启动第二节流部件,打开与第一节流部件并联的第一开关阀;其中,第二节流部件设于空调室内机并与室内换热器串联,第一节流部件设于空调室外机并与室外换热器串联。
- 如权利要求10所述的空调器的控制方法,其中,所述启动第二节流部件,打开与第一节流部件并联的第一开关阀的步骤之后,还包括:将第一节流部件设置为零开度。
- 如权利要求10所述的空调器的控制方法,其中,所述启动第二节流部件,打开第一开关阀的步骤之后,还包括:获取空调器的运行参数;根据空调器的运行参数判断第二节流部件是否故障;以及确定第二节流部件故障时,启动第一节流部件,关闭第一开关阀。
- 如权利要求12所述的空调器的控制方法,其中,所述启动第一节流部件的步骤包括:将第一节流部件调至最大开度。
- 如权利要求12所述的空调器的控制方法,其中,所述根据空调器的运行参数判断第二节流部件是否故障的步骤包括:在空调器运行预设时长后,检测空调器的第一回气过热度;以及确定第一回气过热度小于第一阈值,则判断第二节流部件故障。
- 如权利要求14所述的空调器的控制方法,其中,所述在空调器运行预设时长后,检测空调器的第一回气过热度的步骤包括:获取空调室内机与空调室外机的通讯状态;确定空调室内机与空调室外机通讯中,将预设时长设置为第一时长;以及确定空调室内机与空调室外机未通讯,将预设时长设置为第二时长;其中,第一时长小于第二时长。
- 如权利要求15所述的空调器的控制方法,其中,所述将预设时长设置为第一时长的步骤之前,还包括:将第二节流部件调至最小开度。
- 一种空调器,其中,包括处理器、存储器以及存储在所述存储器并可在所述处理器上运行的空调器的控制程序,所述空调器的控制程序被处理器执行时实现如权利要求7至16任一项所述的空调器的控制方法的步骤。
- 一种可读存储介质,其中,所述可读存储介质存储有空调器的控制程序,所述空调器的控制程序被处理器执行时实现如权利要求7至16任一项所述的空调器的控制方法的步骤。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114963345A (zh) * | 2022-06-07 | 2022-08-30 | 深圳市英威腾网能技术有限公司 | 一种多系统空调室外机 |
| CN114963345B (zh) * | 2022-06-07 | 2023-11-28 | 深圳市英威腾网能技术有限公司 | 一种多系统空调室外机 |
| CN115264785A (zh) * | 2022-07-26 | 2022-11-01 | 青岛海尔空调器有限总公司 | 空调器及其高温低压启动控制方法 |
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| Publication number | Publication date |
|---|---|
| CN114543400B (zh) | 2024-05-28 |
| CN114543400A (zh) | 2022-05-27 |
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