WO2022157966A1 - 空気調和システム、空気調和機の制御装置および空気調和機の制御方法 - Google Patents

空気調和システム、空気調和機の制御装置および空気調和機の制御方法 Download PDF

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Publication number
WO2022157966A1
WO2022157966A1 PCT/JP2021/002406 JP2021002406W WO2022157966A1 WO 2022157966 A1 WO2022157966 A1 WO 2022157966A1 JP 2021002406 W JP2021002406 W JP 2021002406W WO 2022157966 A1 WO2022157966 A1 WO 2022157966A1
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WO
WIPO (PCT)
Prior art keywords
zone
air
indoor unit
manned
unmanned
Prior art date
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PCT/JP2021/002406
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English (en)
French (fr)
Japanese (ja)
Inventor
芸青 范
Original Assignee
三菱電機株式会社
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2021/002406 priority Critical patent/WO2022157966A1/ja
Priority to US18/253,641 priority patent/US20240003580A1/en
Priority to JP2022576931A priority patent/JP7520156B2/ja
Publication of WO2022157966A1 publication Critical patent/WO2022157966A1/ja

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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
    • F24F11/72—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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • 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
    • F24F2120/12—Position of occupants

Definitions

  • the present disclosure relates to an air conditioning system that air-conditions an air-conditioned space, an air conditioner control device, and an air conditioner control method.
  • Patent Document 1 an air conditioner that air-conditions a large space used by a plurality of people, such as an office building or an office, is known (see Patent Document 1, for example).
  • the air conditioner disclosed in Patent Document 1 divides an air-conditioned space into a plurality of control areas, and distinguishes the plurality of control areas into a presence control area where people are present and an absence control area where no people are present. , to control the flow rate of the refrigerant flowing to the indoor unit corresponding to each control area.
  • Patent Literature 1 describes that an air conditioner sets an indoor target temperature in an unattended control region to a temperature higher than an indoor target temperature in an occupied control region when performing cooling operation. .
  • the air conditioner disclosed in Patent Document 1 maintains a state in which the cooling capacity of the indoor units in the unattended control area is suppressed, and increases the air volume of the indoor units in the unoccupied control area. can be raised. As a result, air convective flow between the control areas of the occupied control area and the unattended control area is increased, and air conditioning of the unattended control area is indirectly performed. As a result, the power consumption of the air conditioner increases.
  • the present disclosure has been made to solve the above problems, and provides an air conditioning system, an air conditioner control device, and an air conditioner control method that can suppress the power consumption of the air conditioner. be.
  • An air conditioning system includes an air conditioner including a plurality of indoor units for air-conditioning an air-conditioned space, and a plurality of zones partitioned corresponding to the positions of the plurality of indoor units in the air-conditioned space. , a plurality of temperature detection means for detecting the temperature of each zone, and a human detection device for detecting whether each of the plurality of zones is a manned zone where a person exists or an unmanned zone where no person exists means, and a controller for causing the indoor units in the manned zone to perform cooling operation or heating operation so that the temperature detected by the temperature detection means in the manned zone detected by the human detection means becomes a set temperature; wherein the control device blows air from the indoor unit in the unmanned zone detected by the human detection means among the plurality of zones, and adjusts the air volume of the indoor unit in the unmanned zone to the indoor unit in the manned zone. It is determined based on the air volume of
  • An air conditioner control device includes an air conditioner including a plurality of indoor units for air-conditioning an air-conditioned space, and partitioning the air-conditioned space corresponding to the positions of the plurality of indoor units.
  • Control of an air conditioner connected to a plurality of temperature detection means for detecting the temperature of each zone and human detection means for detecting whether or not a person is present in each of the plurality of zones.
  • the control device sets the temperature detected by the temperature detection means in a manned zone, which is a zone in which a person is detected by the human detection means, among the plurality of zones to be a set temperature.
  • the indoor unit in the manned zone is in cooling operation or heating operation
  • the indoor unit in the unmanned zone which is a zone in which no person is detected by the human detection means among the plurality of zones, is operated to blow air
  • the air volume of the indoor unit in the unmanned zone is determined based on the air volume of the indoor unit in the manned zone.
  • An air conditioner control method includes an air conditioner including a plurality of indoor units for air-conditioning an air-conditioned space, and partitioning the air-conditioned space corresponding to the positions of the plurality of indoor units.
  • the temperature detected by the temperature detection means in a manned zone which is a zone in which the presence of a person is detected by the human detection means, is equal to the set temperature, operating the indoor unit in the manned zone in a cooling operation or a heating operation; blowing air to the indoor unit in an unmanned zone, which is a zone in which no person is detected by the human detection means, among the plurality of zones; and determining the air volume of the indoor unit in the unmanned zone based on the air volume of the indoor unit in the manned zone.
  • cooling operation or heating operation is performed in the manned zone
  • fan operation is performed in the unmanned zone
  • the air volume of the fan operation in the unmanned zone is determined based on the air volume of the cooling or heating operation in the manned zone.
  • FIG. 1 is a block diagram showing one configuration example of an air conditioning system according to Embodiment 1.
  • FIG. FIG. 2 is an external schematic diagram showing one configuration example of the indoor unit shown in FIG. 1 ;
  • FIG. 3 is an enlarged schematic external view of the wind direction plate shown in FIG. 2 ;
  • FIG. 2 is a schematic plan view showing an arrangement example of a plurality of indoor units shown in FIG. 1 in Embodiment 1;
  • 2 is a functional block diagram showing one configuration example of a control device shown in FIG. 1;
  • FIG. FIG. 6 is a hardware configuration diagram showing one configuration example of the control device shown in FIG. 5 ; 6 is a hardware configuration diagram showing another configuration example of the control device shown in FIG. 5;
  • FIG. 4 is a flow chart showing an example of an operation procedure of the air conditioning system according to Embodiment 1.
  • FIG. FIG. 9 is a flow chart showing an example of a specific operation procedure of the process of step S110 shown in FIG. 8 in Embodiment 1.
  • FIG. FIG. 5 is a diagram showing an example of the air volume of each indoor unit when one of the four indoor units shown in FIG. 4 performs cooling operation;
  • FIG. 5 is a schematic diagram showing air flows generated by indoor units installed in two adjacent zones in the room shown in FIG. 4 ;
  • 2 is a schematic plan view showing another arrangement example of the plurality of indoor units shown in FIG. 1 in Embodiment 1.
  • FIG. FIG. 13 is a diagram showing an example of control of each indoor unit when four of the twelve indoor units shown in FIG. 12 perform cooling operation.
  • FIG. 5 is a diagram showing an example of control when the four indoor units shown in FIG. 4 have different air volume adjustment functions;
  • FIG. 3 is a schematic plan view showing an arrangement example of a plurality of indoor units shown in FIG. 1 in Embodiment 2;
  • FIG. 9 is a flow chart showing an example of a specific operation procedure of the process of step S110 shown in FIG. 8 in Embodiment 2.
  • FIG. FIG. 8 is a schematic plan view showing another arrangement example of the plurality of indoor units shown in FIG. 1 in Embodiment 2;
  • communication means either one or both of wireless communication and wired communication.
  • communication may be a communication method in which wireless communication and wired communication are mixed.
  • the communication method may be, for example, wireless communication in one space and wired communication in another space.
  • communication from one device to another device may be performed by wire communication, and communication from another device to another device may be performed by wireless communication.
  • arrows of three axes (X-axis, Y-axis and Z-axis) defining directions are added to some of the drawings.
  • Embodiment 1 is a block diagram showing a configuration example of an air conditioning system according to Embodiment 1.
  • the air conditioning system 1 includes an air conditioner 3 that air-conditions a space to be air-conditioned, and a control device 30 that controls the air conditioner 3 .
  • the air conditioner 3 has an outdoor unit 10 and a plurality of indoor units 20-1 to 20-n. n is the number of indoor units and is an integer of 2 or more.
  • Each of the indoor units 20-1 to 20-n air-conditions the air-conditioned space according to operation modes such as cooling operation, heating operation, dehumidifying operation, and air blowing operation.
  • Each indoor unit may have a humidifying function or a moisturizing function.
  • the outdoor unit 10 has a compressor 11, a four-way valve 12, a heat source side heat exchanger 13, and an outdoor fan 14.
  • Each of the indoor units 20-1 to 20-n has a load-side heat exchanger 21, an expansion valve 22, an indoor fan 23, and a temperature detection means 24.
  • the indoor unit 20-2 is provided with a load-side heat exchanger 21, an expansion valve 22, an indoor fan 23, a temperature detection means 24, and a human detection means 25.
  • FIG. Compressor 11 and heat source side heat exchanger 13 are connected to expansion valve 22 and load side heat exchanger 21 of each indoor unit by refrigerant pipe 15 to form refrigerant circuit 40 in which refrigerant circulates.
  • the compressor 11 compresses and discharges the sucked refrigerant.
  • the compressor 11 is, for example, an inverter type compressor whose capacity can be changed.
  • the four-way valve 12 changes the flow direction of the refrigerant flowing through the refrigerant circuit 40 .
  • the expansion valve 22 reduces the pressure of the refrigerant to expand it.
  • the expansion valve 22 is, for example, an electronic expansion valve.
  • the heat source side heat exchanger 13 is a heat exchanger that exchanges heat between refrigerant and outside air.
  • the load-side heat exchanger 21 is a heat exchanger that exchanges heat between the refrigerant and the air in the air-conditioned space.
  • the heat source side heat exchanger 13 and the load side heat exchanger 21 are, for example, fin-tube heat exchangers.
  • the outdoor fan 14 is, for example, a propeller fan.
  • the outdoor fan 14 changes the air volume according to the operating frequency.
  • the indoor fan 23 is, for example, a cross-flow fan.
  • the control device 30 is connected to the temperature detection means 24 and the human detection means 25 provided in each of the indoor units 20-1 to 20-n via signal lines (not shown), but is connected for wireless communication. may Further, the control device 30 is connected to the compressor 11, the four-way valve 12 and the outdoor fan 14 via signal lines (not shown), but may be connected for wireless communication. The control device 30 is connected to the expansion valve 22 and the indoor fan 23 provided in each of the indoor units 20-1 to 20-n via signal lines (not shown). good.
  • FIG. 2 is an external schematic diagram showing one configuration example of the indoor unit shown in FIG.
  • the indoor units 20-1 to 20-n are 4-direction ceiling cassette type indoor units, but the indoor units are not limited to 4-direction ceiling cassette type indoor units.
  • FIG. 2 shows the appearance of the indoor unit 20-2 attached to the ceiling when viewed obliquely from below. Since each indoor unit has the same external configuration, the external configuration of the indoor unit 20-2 will be described here with reference to FIG.
  • the shape of the lower surface 29 of the indoor unit 20-2 is rectangular.
  • the lower surface 29 is provided with four outlets 27a to 27d and a suction port 26.
  • the suction port 26 is provided in the center of the lower surface 29 .
  • a grid-like frame is provided at the suction port 26, but the illustration of the frame is omitted.
  • the air outlets 27 a to 27 d are arranged along the four sides of the air inlet 26 around the air inlet 26 .
  • Wind direction plates 28a to 28d for controlling the wind direction are provided at the outlets 27a to 27d.
  • each of the air deflectors 28a to 28d is composed of two rectangular flaps. Specifically, an airflow direction plate 28a is provided at the air outlet 27a, and an airflow direction plate 28b is provided at the air outlet 27b.
  • a wind direction plate 28c is provided at the outlet 27c, and a wind direction plate 28d is provided at the outlet 27d.
  • FIG. 3 is an enlarged schematic diagram of the appearance of the wind direction plate shown in FIG.
  • FIG. 3 is an enlarged view of the wind direction plate 28a of the indoor unit 20-2.
  • the angle of the two flaps of the wind direction plate 28a is represented by the angle of depression ⁇ , with the surface of the direction plate 28a parallel to the ceiling surface as the reference plane.
  • a rotating shaft 45 is provided for each of the two flaps of the wind direction plate 28a, and the rotating shaft 45 is connected to a drive unit (not shown).
  • a drive unit (not shown) rotates the rotary shaft 45 to adjust the depression angle ⁇ of the wind direction plate 28a.
  • FIG. 4 is a schematic plan view showing an arrangement example of the plurality of indoor units shown in FIG. 1 in the first embodiment.
  • FIG. 4 shows the case where the number n of indoor units is four.
  • FIG. 4 shows the layout of the indoor units 20-1 to 20-4 when looking down on the room RM1 from above the ceiling of the room RM1, which is the space to be air-conditioned.
  • the space of room RM1 is divided into a plurality of zones Z11 to Z23 corresponding to the positions of indoor units 20-1 to 20-4.
  • FIG. 4 shows a case where zones Z21 and Z23 are defined on the assumption that indoor units are also installed in areas on the ceiling where no indoor units are installed. It is assumed that the planar shape of each of zones Z11 to Z23 is a square.
  • the temperature detection means 24 detects the temperature of each zone with respect to four zones partitioned corresponding to the positions of the indoor units 20-1 to 20-4.
  • the temperature detection means 24 provided in each of the indoor units 20-1 to 20-4 outputs detection results to the control device 30.
  • the temperature detection means 24 is, for example, a temperature sensor such as a thermistor.
  • the human detection means 25 detects whether each of a plurality of zones is a manned zone where people exist or an unmanned zone where no people exist.
  • the human detection means 25 is, for example, an infrared sensor.
  • the human detection means 25 outputs infrared image data obtained by infrared scanning the air-conditioned space to the control device 30 as a detection result.
  • FIG. 1 shows the case where the human detection means 25 is provided in the indoor unit 20-2, the human detection means 25 may be provided in a place other than the indoor unit 20-2. That is, the human detection means 25 may be provided at a position where the presence or absence of a person can be determined over the entire air-conditioned space.
  • FIG. 5 is a functional block diagram showing one configuration example of the control device shown in FIG.
  • the control device 30 is, for example, a microcomputer.
  • the control device 30 is connected to a remote controller (not shown) for the user to input setting information such as an operation mode and a set temperature to the air conditioner 3 .
  • the user may input setting information to the control device 30 via a PDA (Personal Digital Assistant) such as a smartphone and a tablet, and an information processing terminal including a personal computer.
  • the control device 30 has refrigeration cycle control means 31 , zone determination means 32 , air volume control means 33 , and air direction control means 34 .
  • the zone determination means 32 holds a management table including information on the layout of the indoor units 20-1 to 20-4 and the positions of the plurality of zones Z11 to Z23 shown in FIG.
  • the management table contains information on the positional coordinates of each indoor unit of the indoor units 20-1 to 20-4, information on the division of the zone corresponding to the position of each indoor unit, and whether each zone is a manned zone or an unmanned zone.
  • the zone information shown is recorded. For example, assuming that the indoor unit 20-1 is the reference position, the management table records the distance Ly1 between the indoor unit 20-1 and the indoor unit 20-2 in the Y-axis arrow direction shown in FIG. The management table records the distance Lx1 between the indoor unit 20-2 and the indoor unit 20-3 in the direction of the X-axis arrow shown in FIG. The distance Ly1 to 20-4 is recorded.
  • the zone determination means 32 determines whether each zone is a manned zone or an unmanned zone from the infrared image data received from the human detection means 25 at regular intervals. When the determination result is different from the zone information recorded in the management table, the zone determination means 32 updates the zone information in the management table to the latest determination result. After updating the management table, the zone determination means 32 transmits the information of the updated management table to the refrigeration cycle control means 31 and the air volume control means 33 .
  • the refrigeration cycle control means 31 adjusts the temperature detected by the temperature detection means 24 in the manned zone so that it falls within a certain temperature range with reference to the set temperature. Controls the operation of indoor units placed in manned zones.
  • the refrigeration cycle control means 31 When the temperature detected by the temperature detection means 24 in the manned zone is lower than the set temperature, the refrigeration cycle control means 31 causes the indoor units in the manned zone to perform heating operation so that the refrigerant discharged from the compressor 11 is placed on the load side.
  • the four-way valve 12 is controlled so as to flow through the heat exchanger 21 .
  • the refrigeration cycle control means 31 causes the indoor units in the manned zone to perform cooling operation so that the refrigerant discharged from the compressor 11 is directed to the heat source side.
  • the four-way valve 12 is controlled to flow through the heat exchanger 13 . Operation modes such as heating operation and cooling operation may be set by the user.
  • the refrigeration cycle control means 31 closes the expansion valve 22 of the indoor unit in the unmanned zone.
  • the refrigerating cycle control means 31 controls the operating frequency of the compressor 11, the operating frequency of the outdoor fan 14 and It controls the degree of opening of the expansion valve 22 of the indoor unit 20-2.
  • the refrigeration cycle control means 31 transmits to the air volume control means 33 and the wind direction control means 34 air volume control information including information on the set air volume set by the user and information to the effect that the indoor units in the unmanned zone are to be operated to blow air. .
  • the air volume control means 33 controls the operating frequency of the indoor fan 23 of the indoor unit in the manned zone in accordance with the set air volume set by the user.
  • the indoor fan 23 provided in each of the indoor units 20-1 to 20-n is configured to change the air volume to a plurality of levels corresponding to the operating frequency.
  • the air volume control means 33 blows air from the indoor units in the unmanned zone, and determines the air volume of the indoor units in the unmanned zone based on the air volume of the indoor units in the manned zone. For example, the air volume control means 33 makes the air volume of the indoor units in the unmanned zone larger than the air volume of the indoor units in the manned zone. When there are a plurality of manned zones, the air volume control means 33 determines the air volume of the indoor unit of the unmanned zone based on the air volume of the indoor unit of the manned zone closest to the unmanned zone among the plurality of manned zones. The air volume control means 33 may increase the air volume of the indoor unit in the unmanned zone according to the distance between the indoor units in the unmanned zone and the indoor units in the manned zone.
  • the wind direction control means 34 determines the depression angle ⁇ of the wind direction plates 28a to 28d of the air outlets 27a to 27d of the indoor units in the unmanned zone based on the depression angle ⁇ of the wind direction plates 28a to 28d of the air outlets 27a to 27d of the indoor units in the manned zone. to decide. For example, the wind direction control means 34 adjusts the depression angle ⁇ of the wind direction plates 28a to 28d of the air outlets 27a to 27d of the indoor units in the unmanned zone to the depression angle ⁇ of the wind direction plates 28a to 28d of the air outlets 27a to 27d of the indoor units in the manned zone. set to the same angle as
  • FIG. 6 is a hardware configuration diagram showing one configuration example of the control device shown in FIG.
  • the control device 30 shown in FIG. 5 is configured with a processing circuit 80 as shown in FIG.
  • the processing circuit 80 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate). Array), or a combination thereof.
  • the functions of the refrigeration cycle control means 31 , the zone determination means 32 , the air volume control means 33 and the air direction control means 34 may be realized by the processing circuit 80 . Also, the functions of the refrigeration cycle control means 31 , the zone determination means 32 , the air volume control means 33 and the air direction control means 34 may be realized by one processing circuit 80 .
  • FIG. 7 is a hardware configuration diagram showing another configuration example of the control device shown in FIG.
  • the control device 30 shown in FIG. 5 is composed of a processor 81 such as a CPU (Central Processing Unit) and a memory 82 as shown in FIG.
  • a processor 81 such as a CPU (Central Processing Unit)
  • a memory 82 as shown in FIG.
  • Each function of the refrigeration cycle control means 31 , the zone determination means 32 , the air volume control means 33 and the air direction control means 34 is realized by the processor 81 and the memory 82 .
  • FIG. 7 shows that processor 81 and memory 82 are communicatively connected to each other via bus 83 .
  • the memory 82 stores a management table. Also, the memory 82 stores a program corresponding to a flow chart which will be described later.
  • the functions of the refrigeration cycle control means 31, the zone determination means 32, the air volume control means 33, and the wind direction control means 34 are realized by software, firmware, or a combination of software and firmware.
  • Software and firmware are written as programs and stored in memory 82 .
  • the processor 81 implements the functions of each means by reading and executing the programs stored in the memory 82 .
  • non-volatile semiconductor memories such as ROM (Read Only Memory), flash memory, EPROM (Erasable and Programmable ROM) and EEPROM (Electrically Erasable and Programmable ROM) are used.
  • ROM Read Only Memory
  • EPROM Erasable and Programmable ROM
  • EEPROM Electrical Erasable and Programmable ROM
  • a volatile semiconductor memory of RAM Random Access Memory
  • removable recording media such as magnetic disks, flexible disks, optical disks, CDs (Compact Discs), MDs (Mini Discs) and DVDs (Digital Versatile Discs) may be used.
  • FIG. 8 is a flowchart showing an example of the operation procedure of the air conditioning system according to Embodiment 1.
  • the control device 30 executes the flow shown in FIG. 8 at regular intervals.
  • Zij represents an arbitrary zone in which an indoor unit is installed among a plurality of zones in the air-conditioned space.
  • i and j are integers of 1 or more, the maximum value of i is Nx, and the maximum value of j is Ny.
  • the zone determination means 32 acquires infrared image data from the human detection means 25 (step S101).
  • the zone determination means 32 determines whether or not it is necessary to update the held management table (step S102). For example, when the user starts up the air conditioner 3 after the operation of the air conditioner 3 has been stopped, the zone determination means 32 determines that the held management table needs to be updated.
  • step S102 the zone determination means 32 determines whether or not the position of the manned zone determined by the acquired infrared image data matches the position of the manned zone recorded in the held management table. do.
  • the zone determining means 32 determines that the management table needs to be updated, and proceeds to the processing of step S103.
  • the zone determination means 32 determines that updating the management table is unnecessary, and proceeds to the process of step S111.
  • step S103 the refrigeration cycle control means acquires temperature information from the temperature detection means 24 of each of the indoor units 20-1 to 20-n and records it in the management table held by the zone determination means 32.
  • the refrigeration cycle control means 31 causes the indoor units installed in the zone Zij to perform cooling operation or heating operation (step S106).
  • the refrigeration cycle control means 31 controls the air conditioner 3 so that the value of the temperature detected by the temperature detection means 24 in the manned zone approaches the set temperature.
  • the refrigeration cycle control means 31 controls the expansion valve 22 of the indoor unit to cause the indoor unit installed in the zone Zij to blow air (step S107). to the closed state.
  • the air volume control means 33 operates the indoor fan 23 of the indoor unit installed in the zone Zij.
  • step S110 the air volume control means 33 controls the air volume of the indoor units in the unmanned zone Zhk based on the air volume of the indoor units in the manned zone. A specific example of the processing of step S110 will be described later.
  • the refrigeration cycle control means 31 determines whether or not the set temperature of the manned zone has been changed by the user (step S111). When the set temperature of the manned zone is changed by the user, the refrigeration cycle control means 31 returns to the process of step S103. The refrigerating cycle control means 31 changes the control content of the air conditioner 3 according to the changed set temperature. On the other hand, if the set temperature of the manned zone is not changed as a result of the determination in step S111, the refrigeration cycle control means 31 terminates the process.
  • FIG. 9 is a flowchart showing an example of a specific operation procedure for the process of step S110 shown in FIG. 8 in the first embodiment.
  • the zone determining means 32 refers to the management table and calculates the distance L between the indoor units in the unmanned zone and the indoor units in the manned zone for each unmanned zone Zhk (step S201). When there are a plurality of manned zones, the zone determination means 32 calculates the distance L for each of the indoor units in each unmanned zone Zhk. The zone determination means 32 records the calculated distance L in the management table for the indoor units in each unmanned zone Zhk.
  • the air volume control means 33 refers to the management table and determines whether there are a plurality of manned zones (step S202). When there is only one manned zone, the air volume control means 33 determines whether or not the distance L of each unmanned zone Zhk is the same (step S203). When the distance L of each unmanned zone Zhk is the same, the air volume control means 33 sets the air volume of the indoor unit of each unmanned zone Zhk to a value larger than the air volume of the indoor unit of the manned zone (step S204).
  • the air volume control means 33 controls the air volume of the indoor unit of each unmanned zone Zhk to be larger than the air volume of the indoor unit of the manned zone and corresponding to the distance L. Set (step S205).
  • the air volume control means 33 sets the smallest minimum distance Lmin and to identify the indoor unit (step S206). Then, the air volume control means 33 sets the air volume of the indoor units in each unmanned zone Zhk to a value larger than the air volume of the indoor units at the minimum distance Lmin and corresponding to the minimum distance Lmin (step S207). In steps S205 and S207, the air volume control means 33 increases the air volume by increasing the operating frequency of the indoor fan 23 of the indoor unit of each unmanned zone Zhk.
  • the air volume of each indoor unit in a plurality of unmanned zones is set based on the current air volume in cooling or heating operation of the indoor units in manned zones and the distance L from the indoor units in manned zones.
  • zone Z12 is a manned zone
  • zones Z11, Z21, Z22, Z13 and Z23 are unmanned zones.
  • the indoor unit 20-2 in zone Z12 which is a manned zone, performs cooling operation will be described, but heating operation may also be performed.
  • FIG. 10 is a diagram showing an example of the air volume of each indoor unit when one of the four indoor units shown in FIG. 4 performs cooling operation.
  • the indoor units 20-1 to 20-4 can be changed to four air volume levels fL1 to fL4 as shown in FIG.
  • Air volume levels fL1 to fL4 have a relationship of fL1 ⁇ fL2 ⁇ fL3 ⁇ fL4.
  • step S105 to S107 shown in FIG. -3 and 20-4 are operated to blow air.
  • the zone determining means 32 refers to the management table, and regarding the indoor units of each unmanned zone Zhk, the equipment of the indoor unit of the unmanned zone Zhk and the indoor unit 20-2 of the zone Z12 is determined. Calculate the distance L between In the case shown in FIG. 4, the (h,k) combinations are (1,1), (2,2) and (1,3).
  • the distance L between the indoor unit 20-1 and the indoor unit 20-2 is the distance Ly1
  • the distance L between the indoor unit 20-2 and the indoor unit 20-3 is the distance Lx1
  • the distance L to 20-4 is the distance Ly1.
  • Lx1 Ly1.
  • step S203 the air volume control means 33 determines whether or not the distance L for each unmanned zone Zhk is the same. Since the distance L for each unmanned zone Zhk is the same, the air volume control means 33 sets the air volume of the indoor unit in each unmanned zone Zhk to a value larger than the air volume of the indoor unit 20-2 in the manned zone in the process of step S204. . In the example shown in FIG. 10, since the air volume of the indoor unit 20-2 in the zone Z12 is at the air volume level fL1, the air volume control means 33 controls the air volume of each indoor unit in each unmanned zone Zhk from the air volume level fL1 of the indoor unit 20-2. is set to a larger air volume level fL2.
  • FIG. 11 is a schematic diagram showing the air flow generated by the indoor units installed in each of the two adjacent zones in the room shown in FIG.
  • FIG. 11 is a schematic side view of the space of zones Z12 and Z22 shown in FIG. 4 as viewed in the Y-axis arrow direction.
  • the air blown from the air outlets 27b and 27d of the indoor unit 20-2 in the manned zone Z12 flows through the space of the zone Z12, and then flows through the air inlet 26 of the indoor unit 20-2. sucked into
  • the air blown out from the outlets 27b and 27d of the indoor unit 20-3 in the zone Z22 which is an unmanned zone, flows through the space of the zone Z22 and is sucked into the inlet 26 of the indoor unit 20-3.
  • the volume of air blown out from the outlet 27b of the indoor unit 20-3 in the zone Z22 is greater than the volume of air blown out from the outlet 27d of the indoor unit 20-2 in the zone Z12. Therefore, the cooling airflow in the manned zone is suppressed from leaking into the unmanned zone, and the occurrence of air convection between adjacent manned and unmanned zones is suppressed.
  • the wind direction of the indoor unit 20-2 is a depression angle ⁇ 12 and the wind direction of the indoor unit 20-3 is a depression angle ⁇ 22 , then in the example shown in FIG. relationship.
  • ⁇ 12 ⁇ 22
  • the cooling airflow blown out from the outlet 27d of the indoor unit 20-2 and the airflow blown out from the outlet 27b of the indoor unit 20-3 collide with each other and flow parallel to the floor surface. flow to As a result, an air curtain formed by the airflow of the unmanned zone is formed at the boundary between the manned zone and the unmanned zone in the direction perpendicular to the floor surface (in the direction of the Z-axis arrow), further suppressing the leakage of cooling airflow from the manned zone into the unmanned zone. be done.
  • the wind direction control means 34 controls the depression angle ⁇ corresponding to the wind direction of the indoor unit in the manned zone and the depression angle ⁇ corresponding to the wind direction of the indoor unit in the unmanned zone, corresponding to the operation mode of the indoor unit in the manned zone. good too.
  • the wind direction control means 34 controls the wind direction plates 28a to 28d of the indoor unit 20-2 so that the depression angle ⁇ 12 becomes an angle close to 90°. That is, the wind direction control means 34 controls the indoor unit 20-2 so that warm air is blown vertically downward from the indoor unit 20-2.
  • the wind direction control means 34 controls the wind direction plates 28a to 28d of the indoor unit 20-3 so that the depression angle ⁇ 22 is also close to 90°.
  • the wind direction control means 34 controls the wind direction plates 28a to 28d of the indoor unit 20-2 so that the depression angle ⁇ 12 becomes an angle close to 0°.
  • the wind direction control means 34 controls the indoor unit 20-2 so that cold air is blown out horizontally from the indoor unit 20-2.
  • the wind direction control means 34 controls the wind direction plates 28a to 28d of the indoor unit 20-3 so that the depression angle ⁇ 22 is also close to 0°.
  • an air curtain from the unmanned zone is formed vertically on the floor at the boundary between the manned zone and the unmanned zone, preventing the airflow from the manned zone from leaking into the unmanned zone. Coming out is more restrained.
  • the wind direction control means 34 may determine the depression angle ⁇ corresponding to the wind direction of the indoor unit in the unmanned zone according to the distance L from the indoor unit in the unmanned zone to the nearest indoor unit in the manned zone. For example, the wind direction control means 34 decreases the depression angle ⁇ corresponding to the wind direction of the indoor units in the unmanned zone as the distance L increases. As a result, even if the distance L is large, the airflow generated by the blowing operation in the unmanned zone can easily reach the manned zone.
  • FIG. 12 is a schematic plan view showing another arrangement example of the plurality of indoor units shown in FIG. 1 in Embodiment 1.
  • FIG. FIG. 12 shows the case where the number n of indoor units is twelve.
  • FIG. 12 shows the layout of the indoor units 20-1 to 20-12 when looking down on the room RM2 from above the ceiling of the room RM2, which is the space to be air-conditioned.
  • zones Z11 to Z34 zones Z11, Z12, Z23 and Z14 are manned zones, and the other eight zones are unmanned zones.
  • each zone shown in FIG. 12 is a square.
  • Ly1 be the distance L between devices in two zones Z11 and Z12 adjacent in the direction of the Y-axis arrow
  • illustration of the distance Lx1 in the direction of the arrow on the X-axis and the distance Ly1 in the direction of the arrow on the Y-axis between other devices is omitted.
  • the refrigeration cycle control means 31 causes the indoor units 20-1, 20-4, 20-8 and 20-10 to perform cooling operation in steps S105 to S107 shown in FIG.
  • the air volume control means 33 causes the other eight indoor units including the indoor unit 20-2 to blow air.
  • the zone determining means 32 refers to the management table and determines the distance between the indoor units in the unmanned zone Zhk and the indoor units in the manned zone for each unmanned zone Zhk. Calculate L.
  • the combinations of (h,k) are (2,1), (3,1), (2,2), (3,2), (1,3), (3,3) , (2,4) and (3,4).
  • FIG. 13 is a diagram showing an example of control of each indoor unit when four of the twelve indoor units shown in FIG. 12 perform cooling operation.
  • the air volume of the indoor units in the unmanned zones other than zone Z21 will be described.
  • the air volumes of the indoor units 20-1 and 20-4 are set at the air volume level fL2
  • the air volumes of the indoor units 20-8 and 20-10 are set at the air volume level fL1.
  • the air volume of the indoor unit 20-4 is at an air volume level fL2 larger than the air volume level fL1 of the indoor unit 20-8. Therefore, the air volume control means 33 sets the air volume of the indoor unit 20-5 to an air volume level fL3 that is one level higher than the air volume level fL2 of the indoor unit 20-4.
  • the air volume of the indoor unit 20-8 is at the air volume level fL1, so the air volume control means 33 sets the air volume of the indoor unit 20-6 to the air volume level fL3.
  • the air volume of the indoor unit 20-4 is at an air volume level fL2 that is higher than the air volume level fL1 of the indoor units 20-8 and 20-10. Therefore, the air volume control means 33 sets the air volume of the indoor unit 20-7 to an air volume level fL3 that is one level higher than the air volume level fL2 of the indoor unit 20-4.
  • the air volumes of both the indoor units 20-8 and 20-10 are at the air volume level fL1. Therefore, the air volume control means 33 sets the air volume of the indoor unit 20-11 to an air volume level fL2 that is one level higher than the air volume level fL1 of the indoor units 20-8 and 20-10.
  • the air volume of the indoor unit 20-8 is at the air volume level fL1, since the minimum distance Lmin>Lx1, the air volume control means 33 sets the air volume of the indoor unit 20-12 to the air volume level fL3.
  • the air volume control means 33 sets the air volume of the indoor units in the unmanned zone adjacent to the manned zone to the air volume level fL2. If there is an unmanned zone diagonally to the manned zone, the air volume control means 33 sets the air volume level of the indoor unit in the unmanned zone to fL3. When there is no manned zone in the adjacent zone around the unmanned zone, the air volume control means 33 sets the air volume level of the unmanned zone to fL4.
  • the air volume control means 33 determines the air volume of the indoor unit in the unmanned zone according to the distance between the indoor units in the unmanned zone and the indoor units in the manned zone. Further, as described with reference to FIG. 13, when there are a plurality of manned zones and the air volume differs for each indoor unit in the manned zone, the air volume control means 33 sets the air volume of the indoor unit in the unmanned zone to the maximum from the unmanned zone. It is determined based on the air volume of the indoor unit of the manned zone which is close to the distance.
  • the indoor units in the unmanned zone around the manned zone blow air, so that the air temperature-controlled by the cooling/heating operation or heating operation of the indoor units in the manned zone flows out into the space in the unmanned zone. Suppressed. Therefore, it is possible to efficiently air-condition the zone where people are present in a large indoor space. Even if there are a plurality of manned zones as shown in FIG. 12, air can be confined for each of the plurality of manned zones.
  • FIG. 14 is a diagram showing an example of control when the four indoor units shown in FIG. 4 have different air volume adjustment functions.
  • Zone Z12 is a manned zone, and zones Z11, Z22 and Z13 are unmanned zones.
  • the air volume of the indoor units in each zone has three stages of air volume levels fL1 to fL3, but the air volume differs for each indoor unit even at the same air volume level.
  • the air volume in the cooling operation of indoor unit 20-2 in zone Z12 is air volume level fL1.
  • Indoor unit 20-1 in zone Z11 and indoor unit 20-3 in zone Z22 should be set to air volume level fL2 in order to obtain an air volume larger than air volume level fL1 of indoor unit 20-2.
  • the indoor unit 20-4 in the zone Z13 may be at the air volume level fL1 in order to obtain an air volume larger than the air volume level fL1 of the indoor unit 20-2.
  • the air volume control means 33 may control the air volume of the indoor units in the unmanned zone to be greater than the air volume of the indoor units in the manned zone. .
  • the indoor units 20-1 to 20-n may have, as an operation mode, a ventilation mode in which indoor air is discharged to the outside and outside air is taken into the room.
  • the air volume control means 33 switches a ventilation opening (not shown) provided in the indoor unit from a closed state to an open state.
  • the indoor units in the unmanned zone surrounding the manned zone perform ventilation operation for a predetermined period of time at a constant cycle.
  • the air in the manned zone and the outside air can be indirectly exchanged.
  • the temperature change of the air in the manned zone is less and the air environment of the manned zone can be cleaned.
  • the air volume control means 33 switches the ventilation opening (not shown) of the indoor unit of the manned zone from the closed state to the open state, but the indoor fan 23 of the indoor unit of the unmanned zone You can stop spinning.
  • the air volume control means 33 switches the ventilation opening (not shown) of the indoor unit of the manned zone from the closed state to the open state, but the indoor fan 23 of the indoor unit of the unmanned zone You can stop spinning.
  • the manned zone is heated, it is possible to prevent low-temperature outside air from flowing into the unmanned zone, thereby suppressing a decrease in air temperature in the unmanned zone.
  • the air conditioning system 1 of Embodiment 1 includes an air conditioner 3 including a plurality of indoor units 20-1 to 20-n, and partitions corresponding to the positions of the plurality of indoor units 20-1 to 20-n.
  • a plurality of temperature detection means 24 for detecting the temperature of each zone, a human detection means 25, and a control device 30 are provided for a plurality of zones to be detected.
  • the human detection means 25 detects whether each of a plurality of zones is a manned zone where a person exists or an unmanned zone where no person exists.
  • the control device 30 causes the indoor units in the manned zone to perform cooling operation or heating operation so that the temperature detected by the temperature detection means 24 becomes the set temperature.
  • the control device 30 blows air from the indoor units in the unmanned zone detected by the human detection means 25 among the plurality of zones, and determines the air volume of the indoor units in the unmanned zone based on the air volume of the indoor units in the manned zone.
  • cooling operation or heating operation is performed in the manned zone
  • air blowing operation is performed in the unmanned zone
  • the air volume of the air blowing operation in the unmanned zone is based on the air volume of the cooling operation or heating operation in the manned zone. determined by
  • the air volume of the indoor units in the unmanned zone is made larger than the air volume of the indoor units in the manned zone. It is also conceivable to make it equal to the air volume of the indoor unit.
  • air convection between manned and unmanned zones is suppressed, and indirect air conditioning in unmanned zones is suppressed. be done.
  • the efficiency of air conditioning in the manned zone is improved, and the power consumption of the air conditioner 3 can be suppressed.
  • the air volume control means 33 may increase the air volume of the indoor units in the unmanned zone more than the air volume of the indoor units in the manned zone.
  • the airflow in the manned zone is suppressed from leaking into the unmanned zone, and the occurrence of air convection between adjacent manned and unmanned zones is suppressed.
  • the space of the manned zone and the space of the unmanned zone are zoned, and the effect of confining the air conditioned by heating or cooling in the space of the manned zone is improved.
  • the air volume control means 33 adjusts the air volume of the indoor units of the unmanned zone based on the air volume of the indoor unit of the manned zone closest to the unmanned zone among the plurality of manned zones. decide. This is because the air curtain formed at the boundary between the manned zone and the unmanned zone is greatly affected by the air volume of the indoor unit in the unmanned zone closest to the manned zone.
  • the air volume control means 33 may increase the air volume of the indoor unit in the unmanned zone in accordance with the distance between the indoor units in the unmanned zone and the indoor units in the manned zone. For example, if each zone has a square planar shape and the air volume of the indoor units in the manned zone is at the air volume level fL1, the air volume control means 33 sets the air volume of the indoor units in the unmanned zone adjacent to the manned zone to the air volume level fL2. set. The air volume control means 33 sets the air volume of the indoor units in the unmanned zone located on the extension of the diagonal line of the manned zone to the air volume level fL3.
  • the air in the unmanned zone can be suppressed from flowing into the manned zone, and the airflow in the unmanned zone can function as an air curtain. can.
  • the air curtain around the manned zone By increasing the air volume of the air curtain around the manned zone as the distance from the manned zone increases, it functions as a multi-layer curtain.
  • the wind direction control means 34 adjusts the depression angle ⁇ of the wind direction plates 28a to 28d of the outlets of the indoor units of the unmanned zone to the wind direction plates 28a to 28d of the outlets of the indoor units of the manned zones adjacent to the unmanned zone It may be determined based on the depression angle ⁇ of 28d. For example, the depression angle ⁇ of the wind direction plates 28a to 28d at the outlets of the indoor units in the unmanned zone is set to be the same as the depression angle ⁇ of the wind direction plates 28a to 28d at the outlets of the indoor units in the manned zone.
  • the conditioned airflow blown out from the outlet of the indoor unit in the manned zone collides with the airflow blown out from the outlet of the indoor unit in the unmanned zone to flow parallel to each other.
  • an air curtain is formed at the boundary between the manned zone and the unmanned zone by the airflow of the unmanned zone, thereby further suppressing the airflow of the manned zone from leaking into the unmanned zone.
  • Embodiment 2 The air conditioning system of Embodiment 2 efficiently increases the volume of air blown out to the manned zone side in the indoor unit installed in the unmanned zone.
  • the same components as those described in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. Further, in the second embodiment, detailed descriptions of operations that are the same as those described in the first embodiment will be omitted, and operations that are different from those of the first embodiment will be described in detail.
  • FIG. 15 is a schematic plan view showing an arrangement example of the plurality of indoor units shown in FIG. 1 in Embodiment 2.
  • FIG. FIG. 15 shows the case where the number n of indoor units is four.
  • FIG. 15 shows the layout of the indoor units 20-1 to 20-4 when looking down on the room RM3 from above the ceiling of the room RM3, which is the space to be air-conditioned. It is assumed that the planar shape of each zone shown in FIG. 15 is a square. Of zones Z11 to Z22, zone Z12 is a manned zone and the other three zones are unmanned zones.
  • the air volume control means 33 causes the indoor units in the unmanned zone to blow air in the same way as in the first embodiment.
  • the wind direction control means 34 of Embodiment 2 receives the management table updated by the zone determination means 32 from the refrigeration cycle control means 31 . Then, the wind direction control means 34 refers to the management table and closes one or more of the air outlets 27a to 27d of the indoor units in the unmanned zone that are relatively far from the indoor units in the manned zone. For example, in the case of zone Z11 shown in FIG. 15, the wind direction control means 34 controls the depression angle ⁇ of the wind direction plates 28a, 28b and 27d shown in FIG. Close outlets 27a, 27b and 27d. As a result, even if the operating frequency of the indoor fan 23 of the indoor unit 20-1 does not change, the amount of air blown out from the outlet 27c on the manned zone side increases.
  • FIG. 16 is a flow chart showing an example of a specific operation procedure of the process of step S110 shown in FIG. 8 in the second embodiment.
  • the zone determination means 32 refers to the management table and calculates the distance L between the indoor units in the unmanned zone and the indoor units in the manned zone for each unmanned zone Zhk (step S301). When there are a plurality of manned zones, the zone determination means 32 calculates the distance L for each of the indoor units in each unmanned zone Zhk. The zone determination means 32 records the calculated distance L in the management table for the indoor units in each unmanned zone Zhk.
  • the wind direction control means 34 refers to the management table and determines whether or not there are a plurality of manned zones (step S302). If there is only one manned zone, the wind direction control means 34 proceeds to the process of step S304. As a result of the determination in step S302, if there are a plurality of manned zones, the wind direction control means 34 identifies, for each unmanned zone Zhk, the indoor unit having the minimum distance Lmin with respect to the distance L from each of the plurality of manned zones. (step S303). The wind direction control means 34 sets the specified indoor unit as the indoor unit in the manned zone. In step S304, the wind direction control means 34 closes one or more air outlets relatively far from the indoor units in the manned zone among the plurality of air outlets for the indoor units in each unmanned zone Zhk (step S304).
  • the wind direction control means 34 closes the outlets 27a, 27b and 27d of the indoor unit 20-1 in step S304 shown in FIG. As a result, even if the air volume control means 33 does not change the operating frequency of the indoor fan 23 of the indoor unit 20-1, the volume of air blown out from the air outlet 27c on the manned zone side increases.
  • wind direction control means 34 closes outlets 27a and 27d of indoor unit 20-2 in step S304 shown in FIG. As a result, even if the air volume control means 33 does not change the operating frequency of the indoor fan 23 of the indoor unit 20-2, the volume of air blown out from the outlets 27b and 27c on the manned zone side increases.
  • wind direction control means 34 closes outlets 27a, 27c and 27d of indoor unit 20-4 in step S304 shown in FIG. As a result, even if the air volume control means 33 does not change the operating frequency of the indoor fan 23 of the indoor unit 20-4, the volume of air blown out from the air outlet 27b on the manned zone side increases.
  • FIG. 17 is a schematic plan view showing another arrangement example of the plurality of indoor units shown in FIG. 1 in the second embodiment.
  • FIG. 17 shows the case where the number n of indoor units is nine.
  • FIG. 17 shows the layout of the indoor units 20-1 to 20-9 when looking down on the room RM4 from above the ceiling of the room RM4, which is the space to be air-conditioned. It is assumed that the planar shape of each zone shown in FIG. 17 is a square. Of zones Z11 to Z33, zone Z22 is a manned zone and the other eight zones are unmanned zones.
  • the wind direction control means 34 controls the four outlets 27a to 27d for the indoor units 20-1, 20-3, 20-7 and 20-9 in the four unmanned zones located on the diagonal extension of the manned zone. Close the two air outlets relatively far from the manned zone.
  • the wind direction control means 34 relatively controls the four air outlets 27a to 27d for the indoor units 20-2, 20-4, 20-6 and 20-8 in the four unmanned zones adjacent to the manned zone. Close the one outlet farthest from the manned zone.
  • the air volume control means 33 may increase the air volume of the indoor unit in the unmanned zone according to the distance between the indoor units in the unmanned zone and the indoor units in the manned zone.
  • the number of manned zones is not limited to one.
  • the number n of indoor units is not limited to 4 shown in FIG. 15 and 9 shown in FIG.
  • the indoor unit in the unmanned zone has a plurality of outlets
  • the control device 30 is positioned relatively far from the indoor unit in the manned zone among the plurality of outlets. It closes one or more outlets.
  • the second embodiment without changing the operating frequency of the indoor fan of the indoor unit in the unmanned zone, it is possible to increase the amount of air blown to the manned zone side in the indoor unit in the unmanned zone. Therefore, the power consumption associated with the increase in the operating frequency of the indoor fan is suppressed, and the efficiency of air conditioning in the manned zone is improved. As a result, the power consumption reduction effect of the air conditioner 3 is improved as compared with the first embodiment.
  • each zone is square, but the planar shape of each zone is not limited to a square.
  • the planar shape of each zone may be rectangular. Planar shapes may be different for each of the plurality of zones.
  • Each indoor unit is not limited to a four-direction ceiling cassette type indoor unit, and may be, for example, a two-direction ceiling cassette type indoor unit.
  • the indoor unit on the wall side of the room to be air-conditioned may be a wall-mounted indoor unit.
  • the air conditioner 3 may have a plurality of outdoor units 10 .
  • Air conditioning system 3 Air conditioner, 10 Outdoor unit, 11 Compressor, 12 Four-way valve, 13 Heat source side heat exchanger, 14 Outdoor fan, 15 Refrigerant piping, 20-1 to 20-n Indoor unit, 21 Load side heat exchanger, 22 expansion valve, 23 indoor fan, 24 temperature detection means, 25 human detection means, 26 suction port, 27a to 27d outlet, 28a to 28d wind direction plate, 29 lower surface, 30 control device, 31 refrigeration cycle control means , 32 zone determination means, 33 air volume control means, 34 air direction control means, 40 refrigerant circuit, 45 rotary shaft, 80 processing circuit, 81 processor, 82 memory, 83 bus, RM1 to RM4 rooms, Z11 to Z34 zones.

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PCT/JP2021/002406 2021-01-25 2021-01-25 空気調和システム、空気調和機の制御装置および空気調和機の制御方法 WO2022157966A1 (ja)

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US18/253,641 US20240003580A1 (en) 2021-01-25 2021-01-25 Air-conditioning system, controller for air-conditioning apparatus, and control method for air-conditioning apparatus
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