WO2020213130A1 - 空気調和装置の制御装置、室外機、中継機、熱源機及び空気調和装置 - Google Patents
空気調和装置の制御装置、室外機、中継機、熱源機及び空気調和装置 Download PDFInfo
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- WO2020213130A1 WO2020213130A1 PCT/JP2019/016662 JP2019016662W WO2020213130A1 WO 2020213130 A1 WO2020213130 A1 WO 2020213130A1 JP 2019016662 W JP2019016662 W JP 2019016662W WO 2020213130 A1 WO2020213130 A1 WO 2020213130A1
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- heat
- control device
- heat medium
- heat exchanger
- flow rate
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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
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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
-
- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2140/20—Heat-exchange fluid temperature
Definitions
- the present invention relates to a control device for an air conditioner, an outdoor unit, a repeater, a heat source unit, and an air conditioner.
- an indirect air conditioner that generates cold / hot water by a heat source machine such as a heat pump and transports it to an indoor unit by a water pump and piping to cool and heat the room.
- the water heat exchanger does not absorb heat from water to the refrigerant.
- the defrosting time is prolonged, and as a result, the heating is interrupted for a long time, which lowers the room temperature, which may result in a decrease in comfort.
- the present invention has been made to solve the above problems, and in an indirect air conditioner using a heat medium such as water or brine, the heat absorption from the heat medium is ensured while preventing the heat medium from freezing.
- An object of the present invention is to provide a control device for an air conditioner capable of reducing the time required for defrosting operation.
- the present disclosure relates to a control device that controls an air conditioner that operates in an operation mode including a heating mode and a defrosting mode.
- the air conditioner is a compressor that compresses the first heat medium, a first heat exchanger that exchanges heat between the first heat medium and the outdoor air, and heat between the first heat medium and the second heat medium.
- a plurality of flow control valves to be adjusted and a pump for circulating a second heat medium between the plurality of third heat exchangers and the second heat exchanger are provided.
- the control device opens the flow control valve corresponding to the heat exchanger in which the air conditioning request is generated among the plurality of third heat exchangers, and the air conditioning request is not generated among the plurality of third heat exchangers.
- the flow control valve corresponding to the heat exchanger is closed and the temperature of the second heat medium is lower than the first determination temperature in the defrost mode, the heat of some of the heat exchangers for which no air conditioning requirement is generated. Open the flow control valve corresponding to the exchanger. Some of these heat exchangers have a higher set priority than the residual heat exchangers for which no air conditioning requirements have arisen.
- the defrosting time of the air conditioner is shortened, so that the comfort during air conditioning is improved.
- FIG. It is a figure which shows the structure of the air conditioner which concerns on Embodiment 1.
- FIG. It is a figure which shows the flow of the 1st heat medium and the 2nd heat medium during a heating operation. It is a figure which shows the flow of the 1st heat medium and the 2nd heat medium in a heating defrost operation (state A). It is a figure which shows the flow of the 1st heat medium and the 2nd heat medium in a heating defrost operation (state B). It is a waveform diagram for demonstrating an example of control of a heating defrost operation of Embodiment 1.
- FIG. It is a figure which shows the structure of the control device which controls an air conditioner, and the remote control which controls a control device remotely.
- FIG. It is a flowchart for demonstrating the control executed by the control apparatus in Embodiment 1.
- FIG. It is a figure which shows the structure of the air conditioner of Embodiment 2. It is a flowchart for demonstrating the control executed by the control apparatus in Embodiment 2. It is a flowchart for demonstrating the control executed by the control apparatus in Embodiment 3. It is a flowchart for demonstrating the control executed by the control apparatus in Embodiment 4. It is a figure for demonstrating the determination of priority based on the frequency of use. It is a figure which shows the structure of the air conditioner of Embodiment 5. It is a flowchart for demonstrating the control executed by the control apparatus in Embodiment 5.
- Embodiment 6 It is a flowchart for demonstrating the process executed in the priority setting mode in Embodiment 6. It is a flowchart for demonstrating the control executed by the control apparatus in Embodiment 6. It is a figure which shows the structure of the air conditioner 1F of Embodiment 7. It is a flowchart for demonstrating the control executed at the time of defrosting operation in Embodiment 7. It is a waveform diagram for demonstrating an example of the control of the heating defrosting operation executed in Embodiment 7.
- FIG. 1 is a diagram showing a configuration of an air conditioner according to the first embodiment.
- the air conditioner 1 includes a heat source device 2, an indoor air conditioner 3, and a control device 100.
- the heat source unit 2 includes an outdoor unit 10 and a repeater 20.
- a refrigerant can be exemplified as the first heat medium
- water or brine can be exemplified as the second heat medium.
- the outdoor unit 10 includes a part of a refrigeration cycle that operates as a heat source or a cold heat source for the first heat medium.
- the outdoor unit 10 includes a compressor 11, a four-way valve 12, and a first heat exchanger 13.
- FIG. 1 shows a case where the four-way valve 12 performs cooling or defrosting, and the heat source machine 2 acts as a cold heat source. If the four-way valve 12 is switched to reverse the circulation direction of the refrigerant, heating is performed, and the heat source machine 2 acts as a heat source.
- the repeater 20 includes a second heat exchanger 22, a pump 23 that circulates the second heat medium between the indoor air conditioner 3, an expansion valve 24, and a pressure sensor that detects the differential pressure ⁇ P before and after the pump 23. 25 and a temperature sensor 26 for measuring the temperature of the second heat medium that has passed through the second heat exchanger 22.
- the second heat exchanger 22 exchanges heat between the first heat medium and the second heat medium.
- a plate heat exchanger can be used as the second heat exchanger 22.
- the outdoor unit 10 and the repeater 20 are connected by pipes 4 and 5 for circulating the first heat medium.
- the compressor 11, the four-way valve 12, the first heat exchanger 13, the expansion valve 24, and the second heat exchanger 22 form a first heat medium circuit, which is a refrigeration cycle using the first heat medium.
- the outdoor unit 10 and the repeater 20 may be integrated.
- the pipes 4 and 5 are housed inside the housing.
- the indoor air conditioner 3 and the repeater 20 are connected by pipes 6 and 7 for circulating the second heat medium.
- the indoor air conditioner 3 includes an indoor unit 30, an indoor unit 40, and an indoor unit 50.
- the indoor units 30, 40, and 50 are connected to each other in parallel between the pipe 6 and the pipe 7.
- the indoor unit 30 includes a heat exchanger 31, a fan 32 for sending indoor air to the heat exchanger 31, and a flow rate adjusting valve 33 for adjusting the flow rate of the second heat medium.
- the heat exchanger 31 exchanges heat between the second heat medium and the indoor air.
- the indoor unit 40 includes a heat exchanger 41, a fan 42 for sending indoor air to the heat exchanger 41, and a flow rate adjusting valve 43 for adjusting the flow rate of the second heat medium.
- the heat exchanger 41 exchanges heat between the second heat medium and the indoor air.
- the indoor unit 50 includes a heat exchanger 51, a fan 52 for sending indoor air to the heat exchanger 51, and a flow rate adjusting valve 53 for adjusting the flow rate of the second heat medium.
- the heat exchanger 51 exchanges heat between the second heat medium and the indoor air.
- a second heat medium circuit using the second heat medium is formed by the pump 23, the second heat exchanger 22, the heat exchanger 31, the heat exchanger 41, and the heat exchanger 51 connected in parallel. ing. Further, in the present embodiment, an air conditioner having three indoor units is given as an example, but the number of indoor units may be any number.
- the control units 15, 27, and 36 distributed in the outdoor unit 10, the repeater 20, and the indoor air conditioner 3 operate in cooperation with each other as the control device 100.
- the control device 100 controls the compressor 11, the expansion valve 24, the pump 23, the flow rate adjusting valves 33, 43, 53, and the fans 32, 42, 52 according to the outputs of the pressure sensor 25 and the temperature sensor 26.
- One of the control units 15, 27, and 36 serves as a control device, and the compressor 11, the expansion valve 24, the pump 23, and the flow rate adjusting valves 33, 43 are based on the data detected by the other control units 15, 27, 36. , 53 and fans 32, 42, 52 may be controlled. In the case of the heat source machine 2 in which the outdoor unit 10 and the repeater 20 are integrated, the control units 15 and 27 may cooperate with each other to operate as a control device based on the data detected by the control unit 36.
- the air conditioner 1 determines whether or not the second heat medium may freeze by the temperature sensor 26. If there is a risk that the second heat medium will freeze during defrosting, the flow control valve of the indoor unit will be opened and the fan will be rotated to introduce heat from the indoor air into the second heat medium to prevent freezing. This anti-freezing operation will be described step by step below.
- FIG. 2 is a diagram showing the flow of the first heat medium and the second heat medium during the heating operation.
- the indoor unit 30 is in the air conditioning ON state and the indoor units 40 and 50 are in the air conditioning OFF state.
- the air-conditioning ON state indicates a state in which an air-conditioning request is made to the indoor unit
- the air-conditioning OFF state indicates a state in which an air-conditioning request is not made to the indoor unit.
- the air-conditioning OFF state is when the indoor unit is turned off by a remote controller or the like, or when the room temperature reaches the set temperature and the air-conditioning is temporarily stopped as a result of the air-conditioning being performed by the indoor unit in the air-conditioning ON state. including.
- the first heat medium (refrigerant) is discharged from the compressor 11 and returns to the compressor 11 through the second heat exchanger 22, the expansion valve 24, and the first heat exchanger 13 in this order. 12 is set.
- the high-temperature and high-pressure first heat medium discharged from the compressor 11 is condensed by exchanging heat with the second heat medium in the second heat exchanger 22.
- the condensed first heat medium is depressurized by the expansion valve 24, evaporates in the first heat exchanger 13, becomes a low-temperature gas state, and returns to the compressor 11.
- the temperature of the second heat medium (water or brine) delivered from the pump 23 rises by exchanging heat with the first heat medium in the second heat exchanger 22.
- the second heat medium whose temperature has risen is supplied to the indoor unit 30 in the air-conditioned state, and exchanges heat with the indoor air.
- the indoor unit 30 in the air-conditioned state supplies warm air into the room.
- the flow rate adjusting valve 33 corresponding to the indoor unit 30 in the air conditioning ON state is controlled to the open state, and the flow rate adjusting valves 43 and 53 corresponding to the indoor units 40 and 50 in the air conditioning OFF state are controlled to the closed state. Therefore, the second heat medium flows through the heat exchanger 31, but the second heat medium does not flow through the heat exchangers 41 and 51.
- FIG. 3 is a diagram showing the flow of the first heat medium and the second heat medium in the heating defrosting operation (state A).
- the heating defrosting operation (state A) is a standard state of the heating defrosting operation.
- the first heat medium (refrigerant) is discharged from the compressor 11 and returns to the compressor 11 through the first heat exchanger 13, the expansion valve 24, and the second heat exchanger 22 in this order.
- Four-way valve 12 is set. That is, the four-way valve 12 is controlled to the same state as the cooling operation.
- the high-temperature and high-pressure first heat medium discharged from the compressor 11 is condensed by exchanging heat with the outside air in the first heat exchanger 13.
- the condensed first heat medium is depressurized by the expansion valve 24, exchanges heat with the second heat medium in the second heat exchanger 22, becomes a low-temperature gas state, and returns to the compressor 11.
- the temperature of the second heat medium (water or brine) delivered from the pump 23 is lowered by exchanging heat with the first heat medium in the second heat exchanger 22.
- the second heat medium whose temperature has dropped is supplied to the indoor unit 30 in the air-conditioned state, but the fan 32 is stopped and cold air does not blow into the room.
- the flow rate adjusting valve 33 corresponding to the indoor unit 30 in the air conditioning ON state is controlled to the open state, and the flow rate adjusting valves 43 and 53 corresponding to the indoor units 40 and 50 in the air conditioning OFF state are controlled to the closed state. Therefore, the second heat medium flows through the heat exchanger 31, but the second heat medium does not flow through the heat exchangers 41 and 51.
- the second heat medium is cooled by exchanging heat with the low temperature first heat medium.
- the second heat medium may freeze inside the second heat exchanger 22.
- FIG. 4 is a diagram showing the flow of the first heat medium and the second heat medium in the heating defrosting operation (state B).
- the heating defrosting operation (state B) is a state in which the temperature of the second heat medium is lowered during the defrosting operation.
- the second heat medium is also circulated to the heat exchanger in the air conditioning OFF state, and heat is removed from the air in the room where the indoor unit in the air conditioning OFF state is installed. The point of absorption is different. Since the circulation path of the first heat medium is the same as that of FIG. 3, the second heat medium circuit of FIG. 4 will be described.
- the temperature of the second heat medium (water or brine) delivered from the pump 23 is increased by exchanging heat with the first heat medium in the second heat exchanger 22. Decreases.
- the second heat medium whose temperature has dropped is supplied to the indoor unit 30 in the air-conditioned state, but the fan 32 is stopped and cold air does not blow into the room.
- the temperature of the second heat medium is monitored by the temperature sensor 26, and when the temperature of the second heat medium reaches the first determination temperature X ° C., which is close to the freezing temperature, the indoor unit 40 in the air conditioning OFF state
- the settings of the flow control valves 43 and 53 corresponding to, 50 are changed from the closed state to the open state.
- the fans 42 and 52 are also driven, and heat exchange between the indoor air and the second heat medium is actively performed in the heat exchangers 41 and 51.
- the temperature of the second heat medium rises, so that the second heat medium is prevented from freezing. Therefore, freezing in the second heat exchanger 22 is prevented, and the defrosting operation does not have to be interrupted, so that the defrosting time is also shortened.
- the second determination temperature Y ° C. may be any temperature equal to or higher than the first determination temperature X ° C.
- the second determination temperature Y ° C. may be the same as the first determination temperature X ° C., but it is preferable to set Y> X in order to avoid frequent switching of the flow path.
- FIG. 5 is a waveform diagram for explaining an example of control of the heating / defrosting operation of the first embodiment. At times t0 to t1 in FIG. 5, the heating operation is executed, and the first heat medium and the second heat medium are flowing as shown in FIG.
- the state of the four-way valve is set from the heating state to the cooling state according to the establishment of the heating defrost start condition. From time t1 to t2, the first heat medium and the second heat medium are flowing as shown in the state A of FIG. By transferring the heat of the second heat medium to the first heat medium in the second heat exchanger 22, the temperature of the second heat medium gradually decreases, and at time t2, it becomes lower than the first determination temperature X ° C.
- the flow of the second heat medium is changed so as to be distributed to the air conditioning OFF indoor unit as shown in the state B of FIG. Therefore, the amount of heat exchange between the room air and the second heat medium increases, and the temperature of the second heat medium gradually rises.
- FIG. 6 is a diagram showing a configuration of a control device that controls an air conditioner and a remote controller that remotely controls the control device.
- the remote controller 200 includes an input device 201, a processor 202, and a transmitter 203.
- the input device 201 includes a push button for the user to switch ON / OFF of the indoor unit, a button for inputting a set temperature, and the like.
- the transmission device 203 is for communicating with the control device 100.
- the processor 202 controls the transmission device 203 according to the input signal given by the input device 201.
- the control device 100 includes a receiving device 101, a processor 102, and a memory 103.
- the memory 103 includes, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), and a flash memory.
- the flash memory stores the operating system, application programs, and various types of data.
- the processor 102 controls the overall operation of the air conditioner 1.
- the control device 100 shown in FIG. 1 is realized by the processor 102 executing the operating system and the application program stored in the memory 103. When executing the application program, various data stored in the memory 103 are referred to.
- the receiving device 101 is for communicating with the remote controller 200. When there are a plurality of indoor units, the receiving device 101 is provided in each of the plurality of indoor units.
- each of the plurality of control units includes a processor.
- a plurality of processors cooperate to perform overall control of the air conditioner 1.
- Such a control device 100 may be included in any of the outdoor unit 10, the indoor air conditioner 3, the repeater 20, the heat source unit 2, and the air conditioner 1.
- FIG. 7 is a flowchart for explaining the control executed by the control device in the first embodiment.
- the defrosting operation is started when the predetermined defrosting start condition is satisfied.
- the defrosting start condition is satisfied, for example, at regular intervals during the heating operation or when frost formation in the heat exchanger of the outdoor unit is detected.
- step S1 the control device 100 switches the four-way valve 12 from the heating operation state to the cooling operation state. Subsequently, in step S2, the control device 100 controls the indoor unit in the air conditioning ON state so as to turn off the fan and open the flow rate adjusting valve. Then, for example, as shown in the state A of FIG. 3, the second heat medium flows.
- step S3 the control device 100 determines whether or not the temperature T1 of the second heat medium detected by the temperature sensor 26 is lower than the first determination temperature X ° C.
- the temperature T1 is equal to or higher than the first determination temperature X ° C. (NO in S3), the defrosting operation state A shown in FIG. 3 is maintained.
- the process proceeds to step S4.
- step S4 the control device 100 controls the indoor unit in the air conditioning OFF state so as to open the flow rate adjusting valve and turn on the fan. Then, for example, as shown in the state B of FIG. 4, the second heat medium flows.
- step S4 the flow rate adjusting valves corresponding to all the indoor units in the air-conditioning OFF state may be opened, but the priority is set in advance and among the indoor units in the air-conditioning OFF state. It is preferable to open the flow rate control valve corresponding to some indoor units having a high priority. As a result, among the indoor units in the air-conditioning OFF state, the indoor units affected by defrosting can be limited to a part, which is advantageous for the operation when the state is changed from the air-conditioning OFF state to the air-conditioning ON state. ..
- step S5 the control device 100 determines whether or not the temperature T1 of the second heat medium detected by the temperature sensor 26 is equal to or higher than the second determination temperature Y ° C.
- the temperature T1 is lower than the second determination temperature Y ° C. (NO in S5), the defrosting operation state B shown in FIG. 4 is maintained.
- the process proceeds to step S6.
- step S6 the control device 100 controls the indoor unit in the air conditioning OFF state so as to close the flow rate adjusting valve and turn off the fan. Then, the flow of the second heat medium returns to the original state A as shown in FIG.
- the control device 100 determines whether or not the defrosting end condition is satisfied.
- the defrosting end condition is satisfied, for example, when a certain time has passed from the start of defrosting or when the defrosting of the outdoor unit is completed. If the defrosting end condition is not satisfied in step S7, the processes after step S3 are repeated again. On the other hand, if the defrosting end condition is satisfied in step S7, the defrosting operation is ended in step S8, and the heating operation is performed again.
- the control device 100 is a control device that controls an air conditioner 1 that operates in an operation mode including a heating mode and a defrosting mode.
- the air conditioner 1 includes a compressor 11 that compresses the first heat medium, a first heat exchanger 13 that exchanges heat between the first heat medium and the outdoor air, and a first heat medium and a second heat medium.
- a second heat exchanger 22 that exchanges heat between the two, a plurality of third heat exchangers 31, 41, 51 that exchange heat between the second heat medium and the room air, and a plurality of third heat exchangers.
- a pump 23 that circulates with and from the heat exchanger 22 is provided.
- the control device 100 opens a flow control valve corresponding to the heat exchanger in which the air conditioning request is generated among the plurality of third heat exchangers 31, 41, 51, and the plurality of third heat exchangers. Close the flow control valve corresponding to the heat exchanger of 31, 41, 51 for which no air conditioning requirement is generated.
- the control device 100 is a part of the heat exchangers in which the air conditioning requirement is not generated. Open the flow control valve corresponding to the heat exchanger.
- Some of these heat exchangers have a higher set priority than the residual heat exchangers for which no air conditioning requirements have arisen.
- Some high-priority flow control valves are typically the highest-priority flow control valves, but are prioritized when there are three or four or more heat exchangers that do not require air conditioning. It may be two or three from the top of the ranking.
- the control device 100 corresponds to a heat exchanger in which no air conditioning requirement is generated when the temperature T1 of the second heat medium is higher than the second determination temperature Y ° C. (YES in S5). Close the flow control valve.
- the second heat medium flows through the heat exchanger where no air conditioning requirement is generated, so that heat is transferred from the indoor air to the second heat medium. It can be moved and the temperature of the second heat medium can be raised.
- the air conditioner 1 further includes a plurality of fans 32, 42, 52 provided corresponding to the plurality of third heat exchangers 31, 41, 51, respectively.
- the control device 100 drives the fan corresponding to the heat exchanger in which the air conditioning request is generated, and stops the fan corresponding to the heat exchanger in which the air conditioning request is not generated.
- the control device 100 drives a fan corresponding to the heat exchanger in which the air conditioning requirement does not occur when the temperature of the second heat medium is lower than the first determination temperature X ° C.
- the control device 100 in the defrosting mode, when the temperature of the second heat medium is higher than the second determination temperature Y ° C., the control device 100 is used as a heat exchanger in which no air conditioning requirement is generated. Stop the corresponding fan.
- the flow rate adjusting valve of the indoor unit in the air conditioning OFF state is opened and the fan is turned. , The temperature of the second heat medium is raised by the heat from the room. As a result, it is possible to secure heat absorption in the second heat exchanger while preventing freezing of the second heat medium circuit and shorten the time required for the defrosting operation.
- Embodiment 2 In the first embodiment, the indoor units in the air-conditioned state are uniformly handled, or the heat collection sources are set in the order of the highest priority. In the second embodiment, the higher the room temperature, the higher the priority is set so that heat can be collected in a short time in the defrosting operation.
- FIG. 8 is a diagram showing the configuration of the air conditioner 1A of the second embodiment.
- a plurality of room temperatures are installed at places where a plurality of third heat exchangers 31, 41, 51 are installed, respectively. It further includes sensors 34, 44, 54.
- the indoor units 30, 40, and 50 include room temperature sensors 34, 44, and 54, which measure the temperature of the indoor air, respectively.
- the other configurations of the air conditioner 1A are the same as those of the air conditioner 1 shown in FIG. 1, and the description will not be repeated.
- the room temperature sensors 34, 44, 54 measure the temperatures T2, T3, and T4 of the room air that the second heat medium exchanges heat with the third heat exchangers 31, 41, 51, respectively, and output them to the control device 100.
- the control device 100 When there is a risk of freezing of the second heat medium, the control device 100 performs a freeze protection operation in which the flow rate adjusting valve is opened preferentially from the indoor unit in the air conditioning OFF state, and the indoor fan is turned on. carry out.
- the higher the room temperature the more advantageous as a heat source for heating the second heat medium.
- the temperature of the second heat medium can be raised in a short time by selecting the indoor unit installed in the room having the highest room temperature. ..
- FIG. 9 is a flowchart for explaining the control executed by the control device in the second embodiment.
- the flowchart shown in FIG. 9 is obtained by replacing step S4 of the flowchart showing the control of the first embodiment shown in FIG. 7 with step S4A. Therefore, since steps other than step S4A have been described in the first embodiment, the description will not be repeated here.
- the control device 100 sets a flow rate adjusting valve for the indoor unit having the highest room temperature among the indoor units in the air conditioning OFF state in step S4A. It opens and controls to turn on the fan. Then, for example, in the state B of FIG. 4, the second heat medium flows through both the indoor units 40 and 50, but the second heat medium flows only through the indoor unit having the higher room temperature.
- Embodiment 3 In the second embodiment, the priority is determined by the room temperature of the room in which the third heat exchanger is installed, but in the third embodiment, the control device 100 is a plurality of third heat exchangers 31, 41, The larger the capacity (capacity) of 51, the higher the priority of the corresponding flow rate control valve is set.
- FIG. 10 is a flowchart for explaining the control executed by the control device in the third embodiment.
- the flowchart shown in FIG. 10 is obtained by replacing step S4 of the flowchart showing the control of the first embodiment shown in FIG. 7 with step S4B. Therefore, since steps other than step S4B have been described in the first embodiment, the description will not be repeated here.
- the control device 100 sets a flow rate adjusting valve for the indoor unit having the largest capacity among the indoor units in the air conditioning OFF state in step S4B. It opens and controls to turn on the fan. Then, for example, in the state B of FIG. 4, the second heat medium flows through both the indoor units 40 and 50, but the second heat medium flows only in the one having the larger capacity.
- Embodiment 4 when the indoor heat exchanger as the heat collection source is limited, the flow rate adjusting valve corresponding to the indoor heat exchanger that can reduce the time required for heat collection is preferentially selected.
- the indoor heat exchanger which is used less frequently, is preferentially used as the heat collection source among the indoor units in the air conditioning OFF state.
- FIG. 11 is a flowchart for explaining the control executed by the control device in the fourth embodiment.
- the flowchart shown in FIG. 11 is obtained by replacing step S4 of the flowchart showing the control of the first embodiment shown in FIG. 7 with step S4C. Therefore, since steps other than step S4C have been described in the first embodiment, the description will not be repeated here.
- the control device 100 When the water temperature T1 drops below X ° C. during the defrosting operation (YES in S3), the control device 100 has the shortest operation operation time per day one week before the indoor unit in the air conditioning OFF state in step S4C.
- the indoor unit is controlled so that the flow rate adjusting valve is opened and the fan is turned on. Then, for example, in the state B of FIG. 4, the second heat medium flows through both the indoor units 40 and 50, but the second heat medium flows only in the less frequently used one.
- FIG. 12 is a diagram for explaining determination of priority based on frequency of use.
- the control device 100 measures the operation operating time (hours / day) per day for each indoor unit, and stores the measurement data for each day of the week.
- the operating hours on Sunday are stored as 2.3 hours, 1.8 hours, and 3.5 hours for the indoor units 30, 40, and 50, respectively. Therefore, the priority is set higher in ascending order of operating time, and on Sunday, the priority of the indoor unit 40, which has the shortest operating time of 1.8 hours, is the highest.
- the operating hours on Monday are stored as 1.2 hours, 0.9 hours, and 2.8 hours for the indoor units 30, 40, and 50, respectively. Therefore, the priority is set higher in ascending order of operating time, and on Monday, the priority of the indoor unit 40, which has the shortest operating time of 0.9 hours, is the highest.
- the operating hours on Tuesday are stored as 0.9 hours, 1.5 hours, and 3.0 hours for the indoor units 30, 40, and 50, respectively. Therefore, the priority is set higher in ascending order of operating time, and on Tuesday, the priority of the indoor unit 30 having the shortest operating time of 0.9 hours is the highest.
- step S4C of FIG. 11 the operating time of the same day of the week one week before shown in FIG. 12 is referred to, and the flow rate adjustment of the indoor unit having the shortest operating operating time on the corresponding day of the week among the indoor units with air conditioning turned off. Open the valve.
- the control device 100 corresponds to the shorter the operating time of the plurality of third heat exchangers in a certain period prior to the present time. Set the priority of the flow control valve high.
- the fixed period before the present time may be the day before, one month before, etc. More specifically, as shown in FIG. 12, the control device 100 sets the priority of the corresponding flow control valve higher as the operating time per day on the same day of the week as the current day of the week is shorter.
- Embodiment 5 the indoor unit in the air-conditioned state with the air-conditioning turned off is preferentially used as the heat collection source from the indoor unit that has been used less frequently in the past. It may impair user comfort. Therefore, in the fifth embodiment, each indoor unit is provided with a motion sensor for confirming the presence of the user, and the indoor unit to be used as a heat collection source is determined based on the output.
- FIG. 13 is a diagram showing the configuration of the air conditioner 1D of the fifth embodiment.
- the air conditioner 1D shown in FIG. 13 in addition to the configuration of the air conditioner 1 shown in FIG. 1, whether or not a user exists at a place where a plurality of third heat exchangers 31, 41, 51 are installed.
- a plurality of motion sensors 35, 45, 55 for detecting the above are further provided.
- the motion sensors 35, 45, 55 various motion sensors using infrared rays, ultrasonic waves, visible light, or the like can be used.
- the indoor units 30, 40, 50 may include motion sensors 35, 45, 55, or the motion sensors may be installed in a place away from the indoor unit as long as they are in the same room.
- the other configurations of the air conditioner 1D are the same as those of the air conditioner 1 shown in FIG. 1, and the description is not repeated.
- the motion sensors 35, 45, 55 detect whether or not the user is in the room in which the third heat exchangers 31, 41, 51 are installed, and output to the control device 100, respectively.
- FIG. 14 is a flowchart for explaining the control executed by the control device in the fifth embodiment.
- the flowchart shown in FIG. 14 is obtained by replacing step S4 of the flowchart showing the control of the first embodiment shown in FIG. 7 with step S4D. Therefore, since steps other than step S4D have been described in the first embodiment, the description will not be repeated here.
- the control device 100 adjusts the flow rate of the indoor unit in the room in which no person is present in the air conditioning OFF state in step S4D.
- the valve is opened and the fan is controlled to be turned on. Then, for example, in the state B of FIG. 4, the second heat medium flows through both the indoor units 40 and 50, but the second heat medium flows only through the indoor unit in the room where no person is present.
- the indoor unit to be the heat collection source is selected based on any of the priorities described in the second to fourth embodiments. do it.
- the air conditioner 1D is a plurality of motion sensors 35, 45, 55 installed at a place where a plurality of third heat exchangers 31, 41, 51 are installed. Further prepare.
- the control device 100 sets the priority of the flow rate adjusting valve corresponding to the motion sensor that does not detect a person among the plurality of motion sensors 35, 45, 55 to correspond to the motion sensor that detects a person. Set higher than the priority of the flow control valve.
- control device 100 determines the priority order and selects the indoor unit as the heat collection source during the defrosting operation. However, when the priority is automatically determined, the possibility that the priority does not meet the user's intention is not zero. Therefore, in the sixth embodiment, the priority setting mode is provided so that the user can set the priority.
- FIG. 15 is a flowchart for explaining the process executed in the priority setting mode in the sixth embodiment.
- the processing of the flowchart of FIG. 15 is executed when the user selects the priority setting mode with the remote controller.
- the control device 100 receives the priority of the indoor unit input by the user from the remote controller in step S11.
- the user can freely set the priority order of the indoor units in an order in which cold air is allowed to be generated by heat collection when the air conditioning is turned off during the defrosting operation.
- step S12 the control device 100 stores the input priority in the memory 103 of FIG. 6 and ends the processing of the priority setting mode.
- FIG. 16 is a flowchart for explaining the control executed by the control device in the sixth embodiment.
- the flowchart shown in FIG. 16 is obtained by replacing step S4 of the flowchart showing the control of the first embodiment shown in FIG. 7 with step S4E. Therefore, since steps other than step S4E have been described in the first embodiment, the description will not be repeated here.
- the control device 100 adjusts the flow rate of the indoor unit having the highest priority among the indoor units in the air conditioning OFF state in step S4E.
- the valve is opened and the fan is controlled to be turned on. Then, for example, in the state B of FIG. 4, the second heat medium flows through both the indoor units 40 and 50, but the second heat medium flows only through the indoor unit having the higher priority set.
- the air conditioner 1 further includes an input device 201 in which the user sets a priority.
- the control device 100 includes a memory 103 that stores a priority set by the user.
- the process of collecting heat during the defrosting operation based on the priority set by the user described in the sixth embodiment may be combined with the processes of the second to fifth embodiments. In that case, if the process of the sixth embodiment is prioritized and the processes of the second to fifth embodiments are executed when the user has not set the priority, the priority is given when the user's wish is not met. Is preferable because it can be corrected.
- Embodiment 7 In the third to sixth embodiments described above, heat is collected from the indoor unit installed in the room where there is a high possibility that a person is in the room, depending on the priority of collecting heat at the time of defrosting.
- the flow rate adjusting valve and the fan are driven differently to avoid the generation of cold air during the defrosting operation as much as possible.
- FIG. 17 is a diagram showing the configuration of the air conditioner 1F of the seventh embodiment.
- the air conditioner 1F shown in FIG. 13 includes a control device 100F in place of the control device 100 in the configuration of the air conditioner 1 shown in FIG.
- the control device 100F includes a control unit 15 that controls the outdoor unit 10, a control unit 27 that controls the repeater 20, and control units 38, 48, 58 that control the indoor units 30, 40, and 50, respectively.
- the control units 38, 48, and 58 are configured to integrate the defrosting times of the indoor units 30, 40, and 50, respectively.
- the other configurations of the air conditioner 1F are the same as those of the air conditioner 1 shown in FIG. 1, and the description will not be repeated.
- FIG. 18 is a flowchart for explaining the control executed during the defrosting operation in the seventh embodiment.
- the defrosting operation process shown in FIG. 18 is started.
- the defrosting start condition is satisfied, for example, at regular intervals during the heating operation or when frost formation in the heat exchanger of the outdoor unit is detected.
- step S21 the control device 100 switches the four-way valve 12 from the heating operation state to the cooling operation state. Subsequently, in step S22, the control device 100 controls the indoor unit in the air conditioning ON state so as to turn off the fan and open the flow rate adjusting valve. Then, for example, the second heat medium flows as shown in FIG.
- step S23 the control device 100 determines whether or not the temperature T1 of the second heat medium detected by the temperature sensor 26 is lower than the first determination temperature X ° C.
- the temperature T1 is equal to or higher than the first determination temperature X ° C. (NO in S23)
- the defrosting operation state shown in FIG. 3 is maintained.
- the process proceeds to step S24.
- step S24 the control device 100 controls the indoor unit in the air conditioning OFF state and the fan OFF so as to open the flow rate adjusting valve. However, at this time, the fan remains in the OFF state. At this time, as shown in the first to sixth embodiments, the flow rate adjusting valve of the indoor unit having the air conditioning OFF state and the fan OFF having the higher priority is opened, and the flow adjusting valve is opened to the indoor unit having the lower priority. You may not have it.
- the control device 100 determines whether or not the temperature T1 of the second heat medium detected by the temperature sensor 26 is equal to or higher than the second determination temperature Y ° C.
- the second determination temperature Y ° C. may be any temperature equal to or higher than the first determination temperature X ° C.
- the second determination temperature Y ° C. may be the same as the first determination temperature X ° C., but it is preferable to set Y> X in order to avoid frequent switching of the flow path.
- step S25 when the temperature T1 is lower than the second determination temperature Y ° C. (NO in S25), in step S26, it is determined whether or not time Z minutes have elapsed since the process of step S24 was executed. The time accumulated by any of the control units 38, 48, and 58 is used for this determination.
- step S26 if Z minutes have not yet elapsed (NO in S26), the determination process of step S25 is executed again. On the other hand, if Z minutes have elapsed in step S26 (YES in S26), the process proceeds to step S27.
- step S27 the corresponding fan is turned on for the indoor unit whose flow rate adjusting valve is opened in step S24.
- heat is actively exchanged between the indoor air and the second heat medium in the heat exchanger, so that cold air is blown into the room, but the amount of heat collected in the indoor unit increases, so that the temperature of the second heat medium is increased. Is easy to rise.
- step S28 the control device 100 determines whether or not the temperature T1 of the second heat medium detected by the temperature sensor 26 is equal to or higher than the second determination temperature Y ° C.
- step S28 when the temperature T1 is lower than the second determination temperature Y ° C. (NO in S28), the determination process of step S28 is executed again.
- step S28 when the temperature T1 becomes equal to or higher than the second determination temperature Y ° C. (YES in S28), the process proceeds to step S29. Further, in step S25, even when the temperature T1 is equal to or higher than the second determination temperature Y ° C. (YES in S25), the process proceeds to step S29.
- step S29 the control device 100 controls the indoor unit in the air conditioning OFF state so as to close the flow rate adjusting valve and turn off the fan. Then, the flow of the second heat medium returns to the original state as shown in FIG.
- the control device 100 determines whether or not the defrosting end condition is satisfied.
- the defrosting end condition is satisfied, for example, when a certain time has passed from the start of defrosting or when the defrosting of the outdoor unit is completed. If the defrosting end condition is not satisfied in step S30, the processes after step S23 are repeated again. On the other hand, if the defrosting end condition is satisfied in step S30, the defrosting operation is ended in step S31, and the heating operation is performed again.
- FIG. 19 is a waveform diagram for explaining an example of control of the heating / defrosting operation executed in the seventh embodiment. At times t10 to t11 in FIG. 19, the heating operation is executed, and the first heat medium and the second heat medium are flowing as shown in FIG.
- the state of the four-way valve is set from the heating state to the cooling state according to the establishment of the heating defrost start condition. From time t11 to t12, the first heat medium and the second heat medium are flowing as shown in the state A of FIG. By transferring the heat of the second heat medium to the first heat medium in the second heat exchanger 22, the temperature of the second heat medium gradually decreases, and at time t12, it becomes lower than the first determination temperature X ° C.
- the control device 100F turns on the fan of the air conditioning OFF indoor unit, which is the heat collection target. This state is the same state B as in the first embodiment. Then, since the amount of heat exchange between the indoor air and the second heat medium increases, the temperature of the second heat medium gradually rises.
- the control device 100F is a flow rate adjusting valve having a high priority among the flow rate adjusting valves corresponding to the heat exchanger in which the air conditioning requirement does not occur (for example, the priority is the highest). If the temperature of the second heat medium is still lower than the second judgment temperature even after the judgment time has elapsed after opening the high one), rotate the fan of the indoor unit corresponding to the open flow rate control valve. Let me.
- the flow rate adjusting valve of the indoor unit in the air-conditioned state is opened to collect heat. If is insufficient, the fan is further rotated to raise the temperature of the second heat medium.
- the amount of heat collected from the indoor unit can be finely controlled, so that only the required amount of heat can be collected, which is advantageous when the indoor unit in the air-conditioned state starts heating.
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Abstract
Description
図1は、実施の形態1に係る空気調和装置の構成を示す図である。図1を参照して、空気調和装置1は、熱源機2と、室内空調装置3と、制御装置100とを備える。熱源機2は、室外機10と、中継機20を含む。以下の説明において、第1熱媒体として冷媒を、第2熱媒体として水又はブラインを例示することができる。
メモリ103は、たとえば、ROM(Read Only Memory)と、RAM(Random Access Memory)と、フラッシュメモリとを含んで構成される。なお、フラッシュメモリには、オペレーティングシステム、アプリケーションプログラム、各種のデータが記憶される。
実施の形態1では、空調OFF状態にある室内機を一律に扱うか、又は予め定めた優先順位が上位の順から採熱源とした。実施の形態2では、除霜運転において、短時間で採熱が可能なように、室温が高いほど優先順位を高く設定する。
実施の形態2では、第3熱交換器が設置されている室の室温によって優先順位を定めたが、実施の形態3では、制御装置100は、複数の第3の熱交換器31,41,51の容量(能力)が大きいほど対応する流量調整弁の優先順位を高く設定する。
実施の形態2及び3では、採熱源としての室内熱交換器を限定する場合において、採熱に要する時間を削減することができる室内熱交換器に対応する流量調整弁を優先的に選択した。これに対して、実施の形態4では、空調OFF状態の室内機のうち使用頻度が低い室内熱交換器から優先して採熱源とする。
実施の形態4では、空調OFF状態の室内機のうち過去において使用頻度が低い室内機から優先して採熱源としたが、使用頻度が低くてもユーザーがその時使用していれば採熱動作がユーザーの快適性を損なう可能性がある。したがって、実施の形態5では、各室内機にユーザーの在室を確認するための人感センサを設け、その出力に基づいて採熱源とする室内機を決定する。
以上の実施の形態では、制御装置100が優先順位を決定して除霜運転時に採熱源とする室内機を選択した。しかし、自動的に優先順位が決定される場合には、ユーザーの意に沿わない優先順位となる可能性がゼロではない。したがって、実施の形態6では、ユーザーが優先順位を設定できるように優先順位設定モードを設けた。
以上説明した実施の形態3~6では、除霜時に採熱する優先順位によって、人が在室中の可能性の高い室に設置された室内機から採熱することを避けるようにした。実施の形態7では、流量調整弁とファンの駆動に差をつけることによって、除霜運転時の冷風の発生をなるべく避けるようにする。
Claims (12)
- 第1熱媒体を圧縮する圧縮機と、
前記第1熱媒体と室外空気との熱交換を行なう第1熱交換器と、
前記第1熱媒体と第2熱媒体との間で熱交換を行なう第2熱交換器と、
前記第2熱媒体と室内空気との熱交換を行なう複数の第3熱交換器と、
前記複数の第3熱交換器に流通する前記第2熱媒体の流量をそれぞれ調整する複数の流量調整弁と、
前記第2熱媒体を前記複数の第3熱交換器と前記第2熱交換器との間で循環させるポンプとを備え、暖房モードと除霜モードとを含む動作モードで動作する空気調和装置を制御する制御装置であって、
前記暖房モードでは、前記複数の第3熱交換器のうち空調要求が生じている熱交換器に対応する流量調整弁を開き、前記複数の第3熱交換器のうち空調要求が生じていない熱交換器に対応する流量調整弁を閉じ、
前記除霜モードでは、前記第2熱媒体の温度が第1判定温度よりも低い場合には、前記空調要求が生じていない熱交換器のうち一部の熱交換器に対応する流量調整弁を開き、前記一部の熱交換器は、空調要求が生じていない残余の熱交換器よりも設定された優先順位が高い、制御装置。 - 前記空気調和装置は、前記複数の第3熱交換器が設置された場所に設置される複数の室温センサをさらに備え、
前記制御装置は、前記複数の室温センサの検出温度が高いほど対応する流量調整弁の優先順位を高く設定する、請求項1に記載の制御装置。 - 前記制御装置は、前記複数の第3熱交換器の能力が大きいほど対応する流量調整弁の優先順位を高く設定する、請求項1に記載の制御装置。
- 前記制御装置は、現時点よりも前の一定期間における前記複数の第3熱交換器の稼働時間が短いほど対応する流量調整弁の優先順位を高く設定する、請求項1に記載の制御装置。
- 前記制御装置は、現時点の曜日と同じ曜日の一日あたりの稼働時間が短いほど対応する流量調整弁の優先順位を高く設定する、請求項4に記載の制御装置。
- 前記空気調和装置は、前記複数の第3熱交換器が設置された場所に設置される複数の人感センサをさらに備え、
前記制御装置は、前記複数の人感センサのうち、人を検出していない人感センサに対応する流量調整弁の優先順位を、人を検出している人感センサに対応する流量調整弁の優先順位よりも高く設定する、請求項1に記載の制御装置。 - 前記空気調和装置は、ユーザーが優先順位を設定する入力装置をさらに備え、
前記制御装置は、前記ユーザーが設定した優先順位を記憶する記憶部を含む、請求項1に記載の制御装置。 - 前記制御装置は、前記空調要求が生じていない熱交換器に対応する流量調整弁のうち前記一部の熱交換器に対応する流量調整弁を開いてから、判定時間が経過してもまだ前記第2熱媒体の温度が第2判定温度よりも低い場合には、開いている流量調整弁に対応する室内機のファンを回転させる、請求項1に記載の制御装置。
- 前記圧縮機と、前記第1熱交換器と、請求項1~8のいずれか1項に記載の制御装置を備えた室外機。
- 前記第2熱交換器と、前記ポンプと、請求項1~8のいずれか1項に記載の制御装置と、を備えた中継機。
- 前記圧縮機と、前記第1熱交換器と、前記第2熱交換器と、前記ポンプと、請求項1~8のいずれか1項に記載の制御装置を備えた熱源機。
- 前記圧縮機と、前記第1熱交換器と、前記第2熱交換器とによって形成された第1熱媒体回路及び、前記ポンプと、前記第2熱交換器と、前記複数の第3熱交換器とによって形成された第2熱媒体回路と、請求項1~8のいずれか1項に記載の制御装置を備えた空気調和装置。
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EP19925041.6A EP3957925A4 (en) | 2019-04-18 | 2019-04-18 | AIR CONDITIONER CONTROL DEVICE, OUTDOOR UNIT, RELAY DEVICE, HEAT SOURCE UNIT AND AIR CONDITIONER |
JP2021514749A JP7209816B2 (ja) | 2019-04-18 | 2019-04-18 | 空気調和装置の制御装置、室外機、中継機、熱源機及び空気調和装置 |
PCT/JP2019/016662 WO2020213130A1 (ja) | 2019-04-18 | 2019-04-18 | 空気調和装置の制御装置、室外機、中継機、熱源機及び空気調和装置 |
US17/432,677 US11927356B2 (en) | 2019-04-18 | 2019-04-18 | Controller of air conditioning apparatus, outdoor unit, branch unit, heat source unit, and air conditioning apparatus |
CN201980095347.XA CN113661364B (zh) | 2019-04-18 | 2019-04-18 | 空气调节装置的控制装置、室外机、中继机、热源机以及空气调节装置 |
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JPWO2020213130A1 (ja) | 2020-10-22 |
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