WO2015068277A1 - 空気調和装置 - Google Patents
空気調和装置 Download PDFInfo
- Publication number
- WO2015068277A1 WO2015068277A1 PCT/JP2013/080292 JP2013080292W WO2015068277A1 WO 2015068277 A1 WO2015068277 A1 WO 2015068277A1 JP 2013080292 W JP2013080292 W JP 2013080292W WO 2015068277 A1 WO2015068277 A1 WO 2015068277A1
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- Prior art keywords
- room
- temperature
- correction amount
- absent
- target
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Classifications
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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
- 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
- F25B49/022—Compressor control arrangements
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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
-
- 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
- F24F11/46—Improving electric energy efficiency or saving
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
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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
- F24F11/85—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 variable-flow pumps
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/031—Sensor arrangements
- F25B2313/0314—Temperature sensors near the indoor heat exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present invention relates to an air conditioner for cooling and heating all rooms in a building by a heat pump.
- the compressor When the rotational speed of the compressor is increased or decreased based on the presence of an absent room as in Patent Document 1, the compressor may be required to operate at a lower rotational speed or less. Since the compressor cannot be operated below the lower limit rotational speed, the start / stop operation is repeated to repeat the operation and stop of the compressor. However, in the start / stop operation, the operation efficiency is greatly reduced at the time of restart after the stop, so that the power consumption of the air conditioner increases.
- the present invention has been made to solve the above-described problems, and avoids deterioration of operating efficiency due to repeated operation and stop of the compressor, and air conditioning that can realize energy-saving operation.
- An object is to provide an apparatus.
- the air conditioner of the present invention is for heating or cooling a plurality of rooms, and is an air conditioner that is operated based on a target indoor temperature set in a room controller provided for each of the plurality of rooms.
- the target room temperature is obtained from the heat source unit equipped with the compressor, the indoor unit that is connected to the heat source unit by refrigerant piping, and that cools or heats multiple rooms via the duct, and the room controller of each room
- a control device that controls the operation of the heat source unit and the indoor unit based on the acquired target indoor temperature, and the control unit controls the operation of the compressor of the heat source unit based on the target indoor temperature of a plurality of rooms.
- the operation control means, the absent room detecting means for detecting an absent room in which a person is absent, and the air conditioning load of the absent room detected by the absent room detecting means are reduced.
- the compressor of the air conditioner operates continuously without stopping, It is possible to avoid the deterioration of efficiency due to the start / stop operation in which the machine repeats operation and stop, and to realize the operation of the air conditioner that saves energy.
- FIG. 1 It is a schematic diagram which shows preferable embodiment of the air conditioning apparatus of this invention. It is a refrigerant circuit figure which shows an example of the air conditioning apparatus of FIG. It is a block diagram which shows an example of the control apparatus in the air conditioning apparatus of FIG. It is a flowchart which shows the operation example of the air conditioning apparatus of FIG.
- FIG. 1 is a schematic diagram showing a preferred embodiment of the air conditioner of the present invention
- FIG. 2 is a refrigerant circuit diagram showing an example of the air conditioner of FIG. 1 is installed in a building 1, and the building 1 has a plurality of rooms 2 on the first and second floors.
- Each room 2 is connected to a passage (not shown) such as a corridor through a door 2 a, and the passage on each floor leads to a staircase hall 3.
- the air conditioning apparatus 10 air-conditions the several room 2 by performing heating operation or cooling operation.
- the air conditioner 10 is equipped with a vapor compression refrigeration cycle to perform cooling operation and heating operation, and includes a heat source unit 20 and an indoor unit 30.
- the indoor unit 30 the sucked air is cooled or heated by the indoor heat exchanger 31 and sent to the plurality of rooms 2 through the duct 41.
- a damper 42 is installed at a portion of the duct 41 that opens to each room 2, and the temperature of each room 2 is adjusted by opening / closing and opening the damper 42.
- the air sent into each room 2 sequentially passes through the passage from the door 2a, and is collected and circulated to the indoor unit 30 through the staircase hall 3.
- a ventilation device 4 is installed in the building 1.
- the ventilation device 4 has an intake path for sucking outside air into the building 1 and an exhaust path for exhausting air inside the building 1 from the building 1, and performs heat exchange between the intake path and the exhaust path. 5 is provided.
- the ventilator 4 sucks outside air into the intake passage through the eaves louver of the building 1 and the back of the hut, and supplies the outside air to the duct 8 and the indoor unit 30 through the duct 9.
- the ventilation device 4 sucks the inside air in the building 1 from the staircase hall 3 through the duct 6 and discharges it from the duct 7 to the outside.
- a room controller 60 for setting the room temperature to a predetermined target set temperature and a room temperature sensor 2x (see FIG. 2) for measuring the room temperature are installed.
- the target set temperature of the room 2 is set manually or automatically in the room controller 60, and the room controller 60 sets the damper 42 so that the room temperature detected by the room temperature sensor 2x becomes the target set temperature.
- Controls the opening and closing and opening For example, when the room temperature is higher than the target set temperature during the cooling operation, or when the room temperature is lower than the target set temperature during the heating operation, the room controller 60 performs control so that the opening degree of the damper 42 is increased.
- the room controller 60 controls the opening degree of the damper 42 to be small.
- the air conditioner 10 will be described with reference to FIGS. 1 and 2.
- the air conditioner 10 is equipped with a vapor compression refrigeration cycle to perform a cooling operation and a heating operation, and includes the heat source unit 20 and the indoor unit 30.
- the heat-source equipment 20 and the indoor unit 30 are connected cyclically
- the outdoor unit installed in the outdoors may be sufficient.
- the heat source unit 20 includes a compressor 21, a flow path switch 22, an outdoor heat exchanger 23, an outdoor fan 24, and a throttle device 25.
- the compressor 21 sucks and compresses the refrigerant and is driven using an inverter circuit.
- the flow path switching unit 22 switches between the heating flow path and the cooling flow path in accordance with switching of the cooling operation or the heating operation mode, and includes, for example, a four-way valve.
- the flow path switch 22 connects the discharge side of the compressor 21 and the outdoor heat exchanger 23 during the cooling operation, and connects the suction side of the compressor 21 and the indoor heat exchanger 31.
- the flow path switch 22 connects the suction side of the compressor 21 and the outdoor heat exchanger 23 and connects the indoor heat exchanger 31 and the discharge side of the compressor 21 during the heating operation.
- a four-way valve is used as the flow path switching device 22 is illustrated, the present invention is not limited to this. For example, a plurality of two-way valves may be combined.
- the outdoor heat exchanger 23 performs heat exchange between the refrigerant and air (outside air).
- the outdoor heat exchanger 23 has a heat transfer area through which the refrigerant passes and a heat transfer area between the refrigerant flowing through the heat transfer pipe and the outside air. It has a structure with fins for enlarging.
- the outdoor heat exchanger 23 functions as a condenser that condenses and liquefies the refrigerant during the cooling operation, and functions as an evaporator that evaporates and vaporizes the refrigerant during the heating operation.
- the outdoor heat exchanger 23 is blown from the outdoor fan 24.
- the expansion device 25 functions as a pressure reducing valve or an expansion valve that adjusts the pressure of the refrigerant passing through the indoor heat exchanger 31, and is connected between the outdoor heat exchanger 23 and the indoor heat exchanger 31.
- the indoor unit 30 has an indoor heat exchanger 31 and an indoor fan 32.
- the indoor heat exchanger 31 exchanges heat between the refrigerant flowing from the heat source unit 20 and the room air, and for example, increases the heat transfer area between the heat transfer tube that allows the refrigerant to pass therethrough and the refrigerant flowing through the heat transfer tube and the outside air. It has the structure provided with the fin for doing.
- the indoor heat exchanger 31 functions as an evaporator during cooling operation and functions as a condenser during heating operation. And the indoor heat exchanger 31 performs heat exchange between room air and a refrigerant
- the indoor fan 32 blows air to the indoor heat exchanger 31, and the air blown and heat-exchanged by the indoor fan 32 is blown to each room 2 through the duct 41 to cool and heat each room 2. Is done.
- the refrigerant flow in the air conditioner 10 during cooling operation and heating operation will be described with reference to FIG. 1 and FIG.
- the flow path switching unit 22 the discharge side of the compressor 21 and the outdoor heat exchanger 23 are connected, and the indoor heat exchanger 31 and the suction side of the compressor 21 are connected.
- the low-pressure gas refrigerant is compressed in the compressor 21 to become high-pressure gas.
- the refrigerant in the high-pressure gas state is heat-exchanged with the outside air in the outdoor heat exchanger (condenser) 23 and is condensed by transferring the energy of the refrigerant to a heat source (air or water) to become a high-pressure liquid refrigerant.
- the refrigerant is depressurized by the expansion device 25 to be in a low pressure two-phase state and flows into the indoor heat exchanger 31.
- the indoor heat exchanger (evaporator) 31 the refrigerant absorbs the energy of the outdoor air and evaporates to become low-pressure gas.
- the air exchanged with the refrigerant is cooled and supplied to the plurality of rooms 2 through the duct 41. Then, the refrigerant flowing out from the indoor heat exchanger 31 is sucked into the compressor 21.
- the operation example at the time of the heating operation of the air conditioning apparatus 10 is demonstrated.
- the discharge side of the compressor 21 and the indoor heat exchanger 31 are connected, and the outdoor heat exchanger 23 and the suction side of the compressor 21 are connected.
- the refrigerant is compressed in the compressor 21 to become high-pressure gas.
- the refrigerant in the high-pressure gas state flows into the indoor heat exchanger 31 and heat exchange is performed between the refrigerant and the indoor air.
- the refrigerant condenses into a high-pressure liquid refrigerant, and the heat-exchanged water and indoor air are heated and supplied to the plurality of rooms 2 through the duct 41.
- the high-pressure liquid refrigerant flows into the expansion device 25 from the indoor heat exchanger (condenser) 31 and is decompressed in the expansion device 25 to be in a low-pressure two-phase state.
- the refrigerant in the low-pressure two-phase state undergoes heat exchange with the outside air in the outdoor heat exchanger (evaporator) 23 to evaporate and become low-pressure gas.
- the low-pressure gas refrigerant returns to the suction side of the compressor 21 via the flow path switch 22.
- the air conditioner 10 has a control device 50 for controlling the operation of the heat source unit 20 and the indoor unit 30 described above.
- the control device 50 is connected to the room controller 60 via a communication line so as to be able to transmit data.
- the room controller 60 detects the room temperature detected by the room temperature sensor 2x, the target room temperature, the opening degree information of the damper 42, and the like. Is transmitted to the control device 50 of the heat source unit 20.
- the control device 50 has an operation control means 51 for controlling the operation of the heat source device 20 and the indoor unit 30, and the operation control means 51 automatically controls the operation according to the room controller 60 and the external environment.
- the air conditioning apparatus 10 is disposed on the outside air temperature sensor 26 provided in the heat source unit 20, the suction temperature sensor 33 disposed on the suction side of the indoor heat exchanger 31, and the outlet side of the indoor heat exchanger 31.
- a blowout temperature sensor 34 is provided.
- the operation control means 51 controls operation
- the operation control means 51 sets a target blowing temperature according to the air conditioning capacity required for each room 2. Specifically, when the difference between the target indoor temperature and the actual indoor temperature is greater than a predetermined value in each room 2, the operation control means 51 determines that high air conditioning capability is necessary and changes the target blowout temperature. To do. When the room temperature is higher than the target blowing temperature during the cooling operation, the operation control means 51 sets the target blowing temperature to be lower than the current target blowing temperature. Further, when the room temperature is lower than the target blowing temperature during the heating operation, the operation control means 51 sets the target blowing temperature to be higher than the current target blowing temperature.
- the operation control means 51 determines that a large air conditioning capacity is not necessary and changes the target blowing temperature.
- the operation control means 51 sets the target blowing temperature higher than the current target blowing temperature. Further, when the room temperature is higher than the target temperature during the heating operation, the operation control unit 51 sets the target blowing temperature to be lower than the current target blowing temperature.
- the operation control means 51 controls the rotation speed of the compressor 21 based on the target blowing temperature and the blowing temperature measured by the blowing temperature sensor 34 described above.
- the blowing temperature of the air blown out from the indoor heat exchanger 31 decreases during the cooling operation and increases during the heating operation as the rotation speed of the compressor 21 increases. Therefore, the operation control means 51 performs control so that the rotation speed of the compressor 21 is increased when the blowing temperature is higher than the target blowing temperature during the cooling operation, and when the blowing temperature is equal to or lower than the target blowing temperature. Control is performed so that the rotational speed of the compressor 21 is lowered.
- the operation control means 51 performs control so that the rotation speed of the compressor 21 is increased when the blowing temperature is lower than the target blowing temperature, and when the blowing temperature is equal to or higher than the target blowing temperature. Controls the rotational speed of the compressor 21 to be low. As described above, the operation control means 51 performs control so that the rotation speed of the compressor 21 is increased in accordance with the air conditioning load of each room 2 and the air conditioning capability exhibited in the refrigeration cycle is increased.
- the operation control means 51 has a function of controlling the rotation speed of the indoor fan 32 of the indoor unit 30 according to the opening degree of the damper 42 transmitted from the room controller 60 of each room 2. At this time, the operation control means 51 controls the rotational speed of the indoor fan 32 according to, for example, the total value of the opening degree of the damper 42 in each room 2 or the value of the damper 42 having the largest opening degree in the damper 42.
- the operation control means 51 increases the rotational speed of the indoor fan 32 so that the air volume increases when the opening degree of the damper 42 is large, and rotates the rotational speed of the indoor fan 32 when the opening degree of the damper 42 is small. To reduce the air volume.
- the operation control means 51 may control by correcting the target blowing temperature in consideration of these pieces of information. For example, when the opening degree of the damper 42 is large, the target blowing temperature is corrected to be low in the cooling operation and high in the heating operation. When the opening degree of the damper 42 is small, the target blowing temperature is high in the cooling operation, and the heating operation is performed. Then, you may make it correct
- the control device 50 has a function of correcting the target room temperature according to the presence or absence of each room 2.
- the control device 50 includes an absent room detection unit 52, an in-room database DB, and a correction amount setting unit 53.
- the absent room detecting means 52 detects an absent room in which a person is absent from the plurality of rooms 2 using the presence database DB.
- this occupancy database DB time information for staying in each room 2 in advance by the user of the air conditioner 10 is stored as schedule information.
- the absent room detecting means 52 determines the presence or absence of each room 2 by referring to the schedule information in the presence database DB.
- the absent room detecting means 52 detects the absent room in which the person is absent from the presence database DB as the room 2 for correcting the target room temperature.
- the correction amount setting means 53 sets the temperature correction amount Tc of the target room temperature set in the absent room detected by the absent room detecting means 52, and transmits it to the room controller 60.
- the room controller 60 has target temperature correction means 61 for correcting the target room temperature, and the target temperature correction means 61 is already set based on the temperature correction amount Tc set by the correction amount setting means 53. Correct the target room temperature.
- the target temperature correcting means 61 may be provided on the control device 50 side, and the control device 50 may transmit the corrected target room temperature to the room controller 60 side.
- the correction amount setting means 53 sets the temperature correction amount Tc of the target room temperature of the absent room so that the air conditioner 10 reduces the air conditioning load of the absent room. That is, the correction amount setting means 53 sets a temperature correction amount Tc that increases the target indoor temperature during the cooling operation, and sets a temperature correction amount Tc that decreases the target indoor temperature during the heating operation. Then, as described above, the room controller 60 controls the damper 42 so as to achieve the corrected target indoor temperature. Moreover, the operation control means 51 adjusts the target blowing temperature in the indoor unit 30 with the correction of the target indoor temperature, and performs control so that the rotation speed of the compressor 21 is lowered. Thus, by correcting the target indoor temperature, the operation capacity (the number of rotations) of the compressor 21 is changed, and control is performed so that the power consumption of the entire air conditioner 10 is reduced.
- the compressor may be required to operate at the lower limit rotational speed or less. That is, when the number of rooms 2 in which no people are present increases, the required air conditioning capacity decreases, and the control device 50 performs control so that the rotational speed of the compressor 21 is reduced. Since the compressor 21 has a lower limit rotational speed, if the required capacity falls below the air conditioning capacity obtained at the lower limit rotational speed of the compressor 21, if the compressor 21 is operated at the lower limit rotational speed as it is, the air conditioning capacity becomes excessive and cooling is performed. Then it gets too cold, and it gets too warm in heating. Therefore, an operation of repeatedly operating and stopping the compressor 21 is performed. However, in this operating state, the operating efficiency is greatly reduced at the time of restart after the stop, so that the power consumption of the air conditioner increases. At this time, the correction amount setting means 53 resets the temperature correction amount Tc based on the rotation speed of the compressor 21.
- the correction amount setting means 53 when the target indoor temperature set in the room controller 60 is corrected based on the temperature correction amount Tc, and then the operating capacity of the compressor 21 becomes equal to or less than a preset operating capacity.
- the temperature correction amount Tc is reset so as to be reduced by the adjustment amount ⁇ T.
- an initial temperature correction amount Tc0 (for example, 3 ° C.) is stored in the correction amount setting means 53.
- Tc Tc0
- a request to correct the target room temperature by the temperature correction amount Tc is transmitted to the room controller 60.
- the operation control means 51 automatically adjusts the rotational speed of the compressor 21 in accordance with the corrected target indoor temperature and operates for a predetermined period.
- the correction amount setting means 53 determines whether or not the rotational speed of the compressor 21 is smaller than the set threshold value Nref.
- the set threshold value Nref is set to a value larger than the lower limit rotational speed of the compressor 21 by a predetermined amount. For example, the lower limit rotational speed determined by the model of the compressor 21 ⁇ 1.2. Value is set.
- This adjustment amount ⁇ T is preset in the correction amount setting means 53, for example, 1 ° C.
- the temperature correction amount Tc increased by the adjustment amount ⁇ T is transmitted to the room controller 60, and the room controller 60 resets the target indoor temperature. That is, the temperature correction amount Tc is a value between the lower limit value of 0 ° C. and the upper limit value of the initial temperature correction amount Tc0 (eg, 3 ° C.), and the target room temperature is 0 to the initial temperature correction amount Tc0 (3 ° C.). It will be corrected within the range.
- the temperature correction amount Tc of the target room temperature is set according to the rotation speed of the compressor 21.
- the compressor 21 is operated at a lower limit rotational speed for a certain period of time, and in a state in which the blowing temperature of the indoor heat exchanger 31 is determined to be excessive, for example, in cooling operation, it is 2 ° C. lower than the target value of the blowing temperature.
- the state and heating operation when the state 2 ° C. or more higher than the target value of the blowing temperature continues for 10 minutes or more, the operation of the compressor 21 is temporarily stopped to avoid a state where the capacity is excessive. Further, after a certain period of time has elapsed and it is determined that the air conditioning operation is necessary, for example, when the indoor temperature of at least one room 2 is 1 ° C.
- the operation of the compressor 21 is resumed.
- the operation of the compressor 21 is restarted and restarted. Thereafter, until the refrigeration cycle becomes stable, the efficiency of the refrigeration cycle generally decreases and the power consumption increases. End up.
- the temperature correction amount of the target temperature is set so that the compressor 21 can continue operation without stopping.
- Tc in the direction in which the load increases, the start / stop operation of the compressor 21 can be avoided, and as a result, power consumption can be reduced.
- the correction amount setting means 53 adjusts the temperature correction amount Tc and resets the target room temperature simultaneously in all absent rooms when there are a plurality of absent rooms in which people are absent. However, based on the occupancy schedule stored in the occupancy database DB, the adjustment of the temperature correction amount Tc using the adjustment amount ⁇ T and the target indoor temperature in the order of the occupancy time among the plurality of absent rooms. You may make it reset.
- the correction amount setting means 53 first adjusts the temperature correction amount Tc with the adjustment amount ⁇ T for the absent room 2A that is occupying the room from 4 pm.
- the correction amount setting means 53 next selects the priority order.
- the temperature correction amount Tc is adjusted for the room absent room 2C.
- the time for correcting the target indoor temperature for continuously operating the compressor 21 can be shortened. Therefore, the operation time based on the reset target indoor temperature can be shortened, and the operation efficiency of the air conditioner 10 can be increased. Further, when the target room temperature corrected in the absence is canceled and changed to the target temperature before the correction in the presence, the load on the air conditioner 10 is increased, and thus the operation in which the capacity is allocated to the appropriate place is performed. It is possible to reduce the accumulated power consumption of the air conditioner 10.
- FIG. 4 is a flowchart showing an operation example of the air conditioner of FIG. 1, and an operation example of the air conditioner will be described with reference to FIGS.
- the operation of the air conditioner 10 is started, and the room temperature is automatically controlled by the operation control means 51 and the room controller 60 based on each temperature sensor (step ST1).
- the absent room is detected by the absent room detecting means 52
- the target room temperature of the absent room is corrected.
- the correction amount setting means 53 sets an initial temperature correction amount Tc0 (for example, 3 ° C.) as the temperature correction amount Tc (step ST2).
- a request for correction of the temperature correction amount Tc and the target room temperature set in the correction amount setting means 53 is transmitted from the control device 50 to the room controller 60.
- the room controller 60 sets the corrected target room temperature so as to be higher than the previous target room temperature by the temperature correction amount Tc (step ST7).
- the temperature correction amount Tc is added to the target indoor temperature during the cooling operation, and the temperature correction amount Tc is subtracted from the target indoor temperature during the heating operation.
- the opening degree of the damper 42 is controlled to be small, and the rotation speed of the compressor 21 is controlled to be low.
- step ST8 it is determined again whether or not the rotational speed of the compressor 21 is smaller than the set threshold value Nref (step ST4). For example, if the number of absent rooms increases, the air conditioning load decreases, and the rotation speed of the compressor 21 becomes smaller than the set threshold value Nref, the compressor 21 may fall into a start / stop operation.
- the temperature correction amount Tc is corrected so as to be reduced by the adjustment amount ⁇ T (step ST9).
- step ST10 it is determined whether or not the temperature correction amount Tc is smaller than 0 ° C.
- the target room temperature is not corrected (step ST11).
- the adjustment of the temperature correction amount Tc using the adjustment amount ⁇ T and the resetting of the target room temperature described above are based on the occupancy schedule stored in the occupancy database DB, and the occupancy is among the plurality of absent rooms. You may make it be performed in order with time early.
- a request for resetting the temperature correction amount Tc reset by the correction amount setting means 53 and the target room temperature is transmitted from the control device 50 to the room controller 60.
- the opening degree of the damper 42 is controlled to be large and the rotational speed of the compressor 21 is controlled to be high.
- the target indoor temperature is corrected so that the air conditioning capability is increased before the compressor 21 is started and stopped repeatedly in operation and stop.
- the amount of heat released from the absent room is high and the time for increasing heat loss can be shortened. Energy saving operation with less loss can be realized.
- the correction amount setting means 53 can change the operating state of the compressor 21 in accordance with the increase or decrease of the absent room by changing the target temperature so that the temperature correction amount Tc gradually increases or decreases by the adjustment amount ⁇ T. Therefore, the continuous operation of the compressor 21 can be realized even if the situation of the room 2 changes.
- the embodiment of the present invention is not limited to the above embodiment.
- the occupancy detection means the case where the presence or absence is determined based on the registration information of the occupancy database DB is exemplified, but any method may be used as long as the occupancy room is detected. .
- a user's life pattern is collected based on information on the use of equipment such as lighting in each room 2, human detection information using infrared human sensors, indoor door opening / closing information, etc., and at least one piece of information is collected.
- An absent room may be detected based on the above.
- the absent room detecting means 52 may detect the occupancy information not only from the information about the target room 2 but also from the life pattern of the entire home.
- a HEMS Home Energy Management System
- the control device 50 may be mounted on a controller of the HEMS, and the HEMS may instruct the air conditioner 10 to the correction value of the target room temperature.
- the adjustment amount setting means 53 increases or decreases the temperature correction amount Tc using the adjustment amount ⁇ T is illustrated, the adjustment amount ⁇ T when increasing the temperature correction amount Tc and the adjustment amount ⁇ T when decreasing the temperature correction amount Tc. May be set to different values.
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Abstract
Description
Claims (6)
- 複数の部屋の暖房又は冷房を行うものであって、複数の部屋毎に設けられたルームコントローラに設定された目標室内温度に基づく運転が行われる空気調和装置であって、
圧縮機を備える熱源機と、
前記熱源機に冷媒配管により接続されているとともに、ダクトを介して複数の部屋の冷房又は暖房を行う室内機と、
各部屋の前記ルームコントローラから前記目標室内温度を取得し、取得した前記目標室内温度に基づいて前記熱源機及び室内機の動作を制御する制御装置と
を有し、
前記制御装置は、
複数の部屋の前記目標室内温度に基づいて前記熱源機の前記圧縮機の運転を制御する運転制御手段と、
複数の部屋のうち人が不在になっている不在部屋を検出する不在部屋検出手段と、
前記不在部屋検出手段により検出された前記不在部屋の空調負荷が低くなるように、前記不在部屋の前記ルームコントローラに設定された前記目標室内温度を補正するための温度補正量を設定する補正量設定手段と
を備え、
前記補正量設定手段は、前記温度補正量に基づいて前記ルームコントローラに設定されている前記目標室内温度が補正された後に、前記圧縮機の運転容量が予め設定された設定運転容量以下になった場合、前記温度補正量が予め設定された調整量分だけ小さくなるように再設定することを特徴とする空気調和装置。 - 前記制御装置は、前記複数の部屋の人の在室及び不在のスケジュール情報を記憶した在室データベースをさらに備え、
前記不在部屋検出手段は、前記在室データベースから前記不在部屋を検出するものであることを特徴とする請求項1に記載の空気調和装置。 - 前記補正量設定手段は、前記不在部屋検出手段が前記不在部屋を複数検出した場合、すべての前記不在部屋について前記目標室内温度の前記温度補正量を設定するものであり、
複数の前記不在部屋について前記温度補正量を再設定する際、前記在室データベースに記憶されたスケジュール情報に基づいて、複数の前記不在部屋のうち在室になる時間が早い順に前記温度補正量の再設定を行うものである請求項2に記載の空気調和装置。 - 前記補正量設定手段は、前記ルームコントローラにおいて前記温度補正量による前記目標室内温度の補正がなされた後、前記運転制御手段により制御された前記圧縮機の運転容量が予め設定された設定運転容量よりも大きい場合、前記温度補正量が調整量分だけ大きくなるように再設定することを特徴とする請求項1~3のいずれか1項に記載の空気調和装置。
- 前記補正量設定手段は、予め設定された初期温度補正量を最初の前記温度補正量として設定し、前記初期温度補正量から調整量により段階的に再設定を行うものであり、前記温度補正量の上限が前記初期温度補正量であって下限が0℃であることを特徴とする請求項4に記載の空気調和装置。
- 前記補正量設定手段は、冷房運転時には前記目標室内温度を高くなるような前記温度補正量を設定し、暖房運転時には前記目標室内温度が低くなるような前記温度補正量を設定することを特徴とする請求項1~5のいずれか1項に記載の空気調和装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/080292 WO2015068277A1 (ja) | 2013-11-08 | 2013-11-08 | 空気調和装置 |
| EP13897017.3A EP3067635B1 (en) | 2013-11-08 | 2013-11-08 | Air conditioning device |
| US15/028,043 US10088211B2 (en) | 2013-11-08 | 2013-11-08 | Air-conditioning apparatus |
| JP2015546239A JP6009098B2 (ja) | 2013-11-08 | 2013-11-08 | 空気調和装置 |
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|---|---|---|---|
| PCT/JP2013/080292 WO2015068277A1 (ja) | 2013-11-08 | 2013-11-08 | 空気調和装置 |
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| WO2015068277A1 true WO2015068277A1 (ja) | 2015-05-14 |
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ID=53041078
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|---|---|---|---|
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|---|---|
| US (1) | US10088211B2 (ja) |
| EP (1) | EP3067635B1 (ja) |
| JP (1) | JP6009098B2 (ja) |
| WO (1) | WO2015068277A1 (ja) |
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| JP2023032377A (ja) * | 2021-08-27 | 2023-03-09 | パナソニックIpマネジメント株式会社 | 空調システム |
| WO2023026604A1 (ja) * | 2021-08-27 | 2023-03-02 | パナソニックIpマネジメント株式会社 | 空調システム |
| JP7777731B2 (ja) | 2021-08-27 | 2025-12-01 | パナソニックIpマネジメント株式会社 | 空調システム |
| US12595929B2 (en) | 2021-08-27 | 2026-04-07 | Panasonic Intellectual Property Management Co., Ltd. | Air-conditioning system |
| WO2024247116A1 (ja) * | 2023-05-30 | 2024-12-05 | 三菱電機株式会社 | 空気調和システム |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6009098B2 (ja) | 2016-10-19 |
| EP3067635A4 (en) | 2017-08-09 |
| US10088211B2 (en) | 2018-10-02 |
| EP3067635B1 (en) | 2019-12-25 |
| JPWO2015068277A1 (ja) | 2017-03-09 |
| EP3067635A1 (en) | 2016-09-14 |
| US20160245569A1 (en) | 2016-08-25 |
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