WO2024053683A1 - Système de climatisation - Google Patents

Système de climatisation Download PDF

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Publication number
WO2024053683A1
WO2024053683A1 PCT/JP2023/032572 JP2023032572W WO2024053683A1 WO 2024053683 A1 WO2024053683 A1 WO 2024053683A1 JP 2023032572 W JP2023032572 W JP 2023032572W WO 2024053683 A1 WO2024053683 A1 WO 2024053683A1
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WO
WIPO (PCT)
Prior art keywords
air
condition
air supply
exhaust
outdoor
Prior art date
Application number
PCT/JP2023/032572
Other languages
English (en)
Japanese (ja)
Inventor
智哉 村上
将 牧角
裕記 藤岡
諒 岡元
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2024053683A1 publication Critical patent/WO2024053683A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • 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
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/72—Carbon monoxide
    • 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

  • Patent Document 1 Japanese Unexamined Patent Publication No. 2006-133121 discloses a ventilation device that controls the introduction of outside air from outdoors to indoors, and that controls the introduction of outside air based on air pollution prediction related information. There is.
  • Patent Document 1 when it is determined that the outside air is contaminated, the ventilation device is controlled so as not to perform a ventilation operation that introduces outside air from outdoors. Therefore, if it is determined that the outside air is contaminated, ventilation cannot be performed.
  • the air conditioning system includes an acquisition section, a reception section, and a control section.
  • the acquisition unit acquires information regarding the air quality of outdoor air.
  • the reception section receives requests for ventilation operation.
  • the control unit performs an air supply operation for supplying outdoor air into the room and an exhaust operation for discharging indoor air to the outdoors.
  • the control unit receives a request for ventilation operation, it starts air supply operation, and when the above information satisfies the first condition, switches from air supply operation to exhaust operation.
  • the air conditioning system of the first aspect when a request for ventilation operation is received, air supply operation is started, so that the amount of ventilation can be ensured. Then, when the information regarding the air quality of the outdoor air satisfies the first condition, in other words, when the outdoor environment has deteriorated, the air supply operation is switched to the exhaust operation. Therefore, the exhaust operation as a ventilation operation can be performed while suppressing the introduction of outdoor air having an air quality that satisfies the first condition into the room. In this way, the air conditioning system of the first aspect can perform either the air supply operation or the exhaust operation depending on the air quality of the outdoor air.
  • the air conditioning system according to the second aspect is the air conditioning system according to the first aspect, and the control unit restarts the air supply operation when the above information no longer satisfies the second condition during the exhaust operation.
  • the exhaust operation is switched to the air supply operation. Therefore, outdoor air having an air quality that does not satisfy the second condition can be introduced into the room. Therefore, the amount of ventilation by air supply operation can be increased while maintaining the indoor air quality appropriately.
  • the air conditioning system according to the third aspect is the air conditioning system according to the first aspect or the second aspect, and the control unit performs at least one of the cooling operation and the heating operation.
  • the control unit has a third condition for switching from the air supply operation to the exhaust operation during at least one of the cooling operation and the heating operation.
  • the third condition is a condition that makes it easier to switch to exhaust operation than the first condition.
  • control unit has a third condition that makes it easy to switch to exhaust operation during cooling operation and heating operation. Therefore, during cooling operation and heating operation, it is possible to easily switch from air supply operation to exhaust operation.
  • the air conditioning system is the air conditioning system according to the third aspect, in which the control unit controls whether the temperature of the outdoor air is a predetermined temperature or more or the humidity of the outdoor air is a predetermined humidity or more during the cooling operation. or when the third condition is satisfied when the temperature of the outdoor air is below a predetermined temperature or the humidity of the outdoor air is below a predetermined humidity during the heating operation, the air supply operation is switched to the exhaust operation.
  • the exhaust operation is performed by executing the third condition when the temperature or humidity of the outdoor air is high during the cooling operation and when the temperature or humidity of the outdoor air is low during the heating operation. It becomes easier to switch to Therefore, it is possible to suppress the introduction of high temperature or high humidity outdoor air into the room during the cooling operation, and it is also possible to suppress the introduction of low temperature or low humidity outdoor air into the room during the heating operation. Therefore, a decrease in the efficiency of cooling operation and heating operation can be suppressed.
  • the air conditioning system according to the fifth aspect is the air conditioning system according to any one of the first to fourth aspects, and the acquisition unit acquires the above information from the server.
  • information regarding air quality may be acquired from a server.
  • the air conditioning system according to the sixth aspect is the air conditioning system according to any one of the first to fifth aspects, and the information includes at least one of pollen, PM2.5, dust, and yellow sand.
  • one of the air supply operation and the exhaust operation can be performed depending on at least one of pollen, PM2.5, dust, and yellow sand in the outdoor air. Therefore, at least one of pollen, PM2.5, dust, and yellow sand can be appropriately maintained indoors.
  • the air conditioning system according to the seventh aspect is the air conditioning system according to any one of the first to sixth aspects, wherein after starting the air supply operation, the control unit starts the air supply operation regardless of the first condition. Continues for a predetermined period of time.
  • the air conditioning system when a request for ventilation operation is received and the air supply operation is started, the air supply operation is continued for a predetermined period of time. Therefore, when the user requests ventilation operation, a sufficient amount of ventilation can be ensured.
  • the air conditioning system according to the eighth aspect is the air conditioning system according to any one of the first to seventh aspects, and the control unit, after switching to exhaust operation and after a predetermined period of time has elapsed, regardless of the first condition. , switch to air supply operation.
  • the air supply operation can be temporarily performed. Therefore, a sufficient amount of ventilation can be ensured.
  • the air conditioning system according to the ninth aspect is the air conditioning system according to any one of the first to eighth aspects, and includes an air supply route that sends outdoor air indoors during air supply operation, and an air conditioning system that sends indoor air outdoors during exhaust operation. The same exhaust route is used.
  • the air supply route and the exhaust route are common, it is possible to enlarge the route through which outdoor air and indoor air pass. Therefore, the amount of air supply and the amount of exhaust air can be improved.
  • the air conditioning system according to the tenth aspect is the air conditioning system according to the ninth aspect, and further includes a hose, a ventilation device, and an indoor unit.
  • the hose shares an air supply route and an exhaust route.
  • the ventilation system is installed outdoors and performs air supply and exhaust operations.
  • the indoor unit is connected to a ventilation system via a hose.
  • the air conditioning system of the tenth aspect since the hose through which the outdoor air to be supplied and the indoor air to be exhausted are common, it is possible to easily realize an air conditioning system that increases the amount of air supplied and the amount of exhaust air.
  • the air conditioning system according to the eleventh aspect is the air conditioning system according to any one of the first to tenth aspects, and further includes a switching damper.
  • the switching damper performs a switching operation to switch from one of air supply operation and exhaust operation to the other operation.
  • the switching damper allows easy switching between air supply operation and exhaust operation.
  • FIG. 1 is an external view of an air conditioning system according to an embodiment of the present disclosure.
  • This is a system diagram of a refrigerant circuit used in an air conditioning system with a schematic diagram of air flow added. It is a control block diagram of an air conditioning system. It is a flow chart which shows control by a control part concerning an embodiment. It is a flow chart which shows control by a control part concerning a modification. It is a flow chart which shows control by a control part concerning another modification. It is a flow chart which shows control by a control part concerning another modification.
  • an air conditioning system 1 performs air conditioning and ventilation in a room such as a building.
  • the air conditioning system 1 includes an air conditioner 1a that performs indoor air conditioning, a ventilation device 1b that performs indoor ventilation, an acquisition section 110 shown in FIG. 3, a reception section 120, and a control section 130.
  • the air conditioner 1a performs at least one of a cooling operation and a heating operation as an air conditioning operation.
  • the air conditioner 1a of this embodiment performs cooling operation, dehumidification operation, and heating operation.
  • the ventilation device 1b performs an air supply operation that supplies outdoor air indoors, and an exhaust operation that exhausts indoor air outdoors.
  • the acquisition unit 110 acquires information regarding the air quality of outdoor air.
  • the reception unit 120 receives a request for ventilation operation.
  • the control unit 130 controls the components of the air conditioner 1a and the ventilation device 1b.
  • the control unit 130 of this embodiment performs control to perform air conditioning operation and ventilation operation.
  • the control unit 130 Upon receiving a request for ventilation operation, the control unit 130 starts air supply operation, and switches from air supply operation to exhaust operation when information regarding the air quality of outdoor air satisfies the first condition.
  • the air conditioner 1a includes an indoor unit 2, an outdoor unit 3, and connecting pipes 31 and 32.
  • the indoor unit 2 is placed indoors.
  • the outdoor unit 3 is placed outdoors.
  • the connecting pipes 31 and 32 connect the indoor unit 2 and the outdoor unit 3.
  • a vapor compression refrigerant circuit is configured by connecting the indoor unit 2 and the outdoor unit 3 via connecting pipes 31 and 32.
  • the indoor unit 2 of this embodiment is a wall-mounted type. As shown in FIG. 2, the indoor unit 2 includes an indoor heat exchanger 11, an indoor fan 12, and a fan motor 13.
  • the indoor heat exchanger 11 exchanges heat between the refrigerant and indoor air.
  • the indoor fan 12 sucks indoor air into the indoor unit 2 and blows out the air after exchanging heat with the indoor heat exchanger 11 into the room.
  • the fan motor 13 drives the indoor fan 12 to rotate.
  • the indoor unit 2 is formed with an inlet 18 and an outlet 19.
  • the suction port 18 sucks indoor air during exhaust operation.
  • the suction port 18 further sucks indoor air during air conditioning operation.
  • the air outlet 19 blows indoor air and outdoor air indoors.
  • the suction port 18 and the blowout port 19 are formed in the casing of the indoor unit 2.
  • the suction port 18 is provided upstream of the indoor heat exchanger 11. A part of the indoor air introduced from the suction port 18 during the exhaust operation is discharged outside from the air supply/exhaust port 14 without passing through the indoor heat exchanger 11. The remainder of the indoor air introduced from the suction port 18 during the exhaust operation exchanges heat with the indoor heat exchanger 11 when passing through the indoor heat exchanger 11, and after being cooled, dehumidified, or heated, the air is sent to the air outlet. 19 into the room.
  • indoor air introduced from the suction port 18 during the air supply operation passes through the indoor heat exchanger 11 and is cooled, dehumidified, or heated, and then is supplied indoors from the blowout port 19.
  • the indoor unit 2 is provided with an air supply/exhaust port 14 .
  • the air supply/exhaust port 14 is an air supply port through which outdoor air is introduced during air supply operation, and an exhaust port through which indoor air is discharged during exhaust operation.
  • outdoor air is supplied indoors through the air supply/exhaust port 14, and in the exhaust operation, indoor air is discharged outdoors through the air supply/exhaust port 14.
  • the supply/exhaust port 14 is an air supply route through which outdoor air passes during air supply operation, and an exhaust route through which indoor air passes during exhaust operation.
  • the supply/exhaust port 14 is an opening formed in a wall inside the room.
  • the supply/exhaust port 14 and the internal space of the hose 6 communicate with each other.
  • an indoor temperature sensor 15 and an indoor humidity sensor 16 are arranged in the indoor unit 2.
  • the indoor temperature sensor 15 detects the indoor temperature.
  • the indoor humidity sensor 16 detects indoor humidity.
  • the indoor temperature sensor 15 and the indoor humidity sensor 16 may be indoor temperature and humidity sensors that detect indoor temperature and indoor humidity.
  • indoor temperature sensor 15 and the indoor humidity sensor 16 may be placed somewhere in the room instead of in the indoor unit 2.
  • Outdoor unit 3 includes a compressor 21, a four-way switching valve 22, an accumulator 23, an outdoor heat exchanger 24, an expansion valve 25, a filter 26, and a liquid closing valve 27. , a gas shutoff valve 28 , an outdoor fan 29 , and a fan motor 30 .
  • the compressor 21 is a mechanism that compresses the low pressure refrigerant in the refrigeration cycle until it becomes high pressure.
  • the four-way switching valve 22 is connected to the discharge side of the compressor 21.
  • Accumulator 23 is connected to the suction side of compressor 21.
  • Outdoor heat exchanger 24 is connected to four-way switching valve 22 .
  • Expansion valve 25 is connected to outdoor heat exchanger 24 .
  • the expansion valve 25 is connected to a communication pipe 32 via a filter 26 and a liquid shutoff valve 27, and is connected to one end of the indoor heat exchanger 11 via this communication pipe 32.
  • the four-way switching valve 22 is connected to a communication pipe 31 via a gas shutoff valve 28, and is connected to the other end of the indoor heat exchanger 11 via this communication pipe 31.
  • the outdoor fan 29 exhausts outdoor air after heat exchange in the outdoor heat exchanger 24 to the outside.
  • the fan motor 30 rotationally drives the outdoor fan 29.
  • an outdoor temperature sensor 33 and an outdoor humidity sensor 34 are arranged in the outdoor unit 3.
  • the outdoor temperature sensor 33 detects the outdoor temperature.
  • the outdoor humidity sensor 34 detects outdoor humidity.
  • the outdoor temperature sensor 33 and the outdoor humidity sensor 34 may be outdoor temperature/humidity sensors that detect outdoor temperature and outdoor humidity.
  • outdoor temperature sensor 33 and the outdoor humidity sensor 34 may be placed somewhere outside the room instead of in the outdoor unit 3.
  • the ventilation device 1b includes a ventilation unit 4 and a hose 6.
  • the ventilation unit 4 is arranged indoors or outdoors, and here it is arranged outdoors.
  • the hose 6 shares an air supply path that sends outdoor air indoors during air supply operation and an exhaust path that sends indoor air outdoors during exhaust operation.
  • the hose 6 connects the ventilation unit 4 and the indoor unit 2.
  • the hose 6 of this embodiment is one member.
  • the ventilation unit 4 is a unit that can perform air supply operation and exhaust operation as ventilation operation.
  • the ventilation unit 4 of this embodiment is placed above the outdoor unit 3 and is integrated therewith.
  • the ventilation unit 4 includes a switching damper 43 that performs a switching operation to switch from one of air supply operation and exhaust operation to the other operation.
  • the switching damper 43 performs a switching operation to switch from air supply operation to exhaust operation, and a switching operation to switch from exhaust operation to air supply operation.
  • the switching damper 43 includes a flow path switching member 431 and a radial fan 432.
  • the flow path switching member 431 is a member that switches between an air supply path and an exhaust path.
  • the flow path switching member 431 is a rotary member.
  • the flow path switching member 431 forms an air supply path and the radial fan 432 is started, outdoor air taken in from outside is supplied to the indoor unit 2 via the hose 6.
  • the flow path switching member 431 forms an exhaust path and the radial fan 432 is activated, the indoor air taken in from the indoor unit 2 is discharged to the outside through the hose 6.
  • the ventilation unit 4 is provided with an air supply/exhaust port 41 .
  • the air supply/exhaust port 41 is an opening through which air is taken in to be sent to the indoor unit 2, or through which air is taken in from the indoor unit 2 and exhausted to the outside.
  • the air supply/exhaust port 41 is formed in the casing of the ventilation unit 4.
  • (2-2-2) Hose As shown in Figures 1 and 2, between the ventilation unit 4 placed outdoors and the indoor unit 2, outdoor air from the ventilation unit 4 is supplied to the indoor unit 2 side.
  • a hose 6 is provided which is used for draining indoor air and for discharging indoor air to the outdoors.
  • the hose 6 connects the ventilation unit 4 and the indoor unit 2.
  • one end of the hose 6 is connected to an air supply/exhaust port member (here, a wall) that forms the air supply/exhaust port 14 of the indoor unit 2, and the other end of the hose 6 is connected to the ventilation unit 4. . Therefore, in the air supply operation, outdoor air is supplied into the room via the hose 6, and in the exhaust operation, the indoor air is discharged to the outdoors via the hose 6.
  • the hose 6 is a member that constitutes an air supply route through which outdoor air passes during air supply operation, and a member that constitutes an exhaust route through which indoor air passes during exhaust operation.
  • the acquisition unit 110 shown in FIG. 3 acquires information regarding the air quality of outdoor air.
  • the acquisition unit 110 is included in the ventilation unit 4.
  • the acquisition unit 110 only needs to be included in the configuration of the air conditioning system 1, and may be included in the outdoor unit 3 or the indoor unit 2, for example.
  • the information acquired by the acquisition unit 110 is one or more pieces of information regarding the air quality of outdoor air.
  • This information includes, but is not particularly limited to, pollen, PM2.5, dust, yellow dust, carbon monoxide, and the like.
  • the information includes at least one of pollen, PM2.5, dust, and yellow sand.
  • This information also includes an assessment of air quality. Evaluations include numerical values and graded indicators related to air quality.
  • Evaluations include numerical values and graded indicators related to air quality.
  • One of the pieces of information is pollen, and in descending order of air quality, it is “very high,” “high,” “slightly high,” “low,” and “unpublished.”
  • One of the pieces of information is PM2.5, in descending order of air quality: “extremely high,” “very high,” “high,” “slightly high,” “slightly low,” “low,” and “almost.” None.
  • One of the pieces of information is yellow sand, and the air quality is "very much,” “a lot,” “slightly a lot,” and “little,” in descending order of air quality.
  • One of the pieces of information is dust, the concentration of airborne particulates as measured by a dust meter.
  • the acquisition unit 110 acquires information regarding the air quality of outdoor air from the server 101.
  • the server 101 is an external server that is communicably connected to the air conditioning system 1 via a network such as the Internet.
  • the acquisition unit 110 is realized, for example, by a network interface that acquires (receives) information from the server 101 via a network. Further, the acquisition unit 110 periodically acquires information regarding the air quality of outdoor air from the server 101. For example, the acquisition unit 110 may acquire information at predetermined time intervals while the air conditioner 1a or ventilation device 1b is operating, or may acquire information in response to a request transmitted from the remote controller 102.
  • the reception unit 120 accepts requests for at least one of air conditioning operation and ventilation operation.
  • the reception unit 120 is included in the indoor unit 2.
  • the reception unit 120 may be included in any of the configurations of the air conditioning system 1, and may be provided in each of the indoor unit 2, the outdoor unit 3, and the ventilation unit 4, for example.
  • the receiving unit 120 receives a request for ventilation operation from the remote controller 102 provided indoors.
  • the reception unit 120 is realized, for example, by a dedicated interface that accepts (receives) requests from the remote controller 102.
  • the remote control 102 is provided with a ventilation operation button (in this embodiment, an "automatic ventilation mode" button) that automatically performs an air supply operation and an exhaust operation.
  • a ventilation operation button in this embodiment, an "automatic ventilation mode" button
  • the remote controller 102 transmits a request for ventilation operation to the reception unit 120.
  • the receiving unit 120 receives a request for ventilation operation transmitted from the remote controller 102.
  • the remote control 102 may further be provided with a button for selecting air supply operation and exhaust operation.
  • the remote controller 102 transmits a request for the air supply operation or exhaust operation to the reception unit 120.
  • the reception unit 120 receives the request for air supply operation or exhaust operation transmitted from the remote controller 102.
  • a configuration may be adopted in which a request for ventilation operation, etc. is transmitted to the reception unit 120 from a communication terminal such as a smartphone.
  • a dedicated application is installed on the communication terminal that allows the user to perform operations related to at least one of air conditioning operation and ventilation operation, and when the user performs a predetermined screen operation, the communication terminal sends a predetermined message to the reception unit 120. Send a request.
  • the control unit 130 shown in FIG. 3 is realized by, for example, a computer.
  • the computer includes, for example, a control calculation device and a storage device.
  • a processor can be used as the control calculation device.
  • the control unit 130 includes a CPU as a processor.
  • the control arithmetic device reads a program stored in a storage device and performs predetermined image processing, arithmetic processing, or sequence processing in accordance with this program.
  • the control calculation device can write calculation results to the storage device or read information stored in the storage device, for example, according to a program.
  • the storage device can be used as a database.
  • the control unit 130 includes a memory as a storage device.
  • the control unit 130 of this embodiment is provided in each of the indoor unit 2, outdoor unit 3, and ventilation unit 4.
  • This control unit 130 is connected to each device of the indoor unit 2, outdoor unit 3, and ventilation unit 4, an outdoor temperature sensor 33, an outdoor humidity sensor 34, an indoor temperature sensor 15, and an indoor humidity sensor 16.
  • the control unit 130 controls the operation of each device according to various operations such as heating operation, cooling operation, dehumidification operation, air supply operation, exhaust operation, etc., based on an operation command from the remote control 102 etc. or automatically. .
  • the control unit 130 controls the cooling operation, the dehumidification operation, the heating operation, the air supply operation, and the exhaust operation to be performed independently, and controls the air supply operation during the cooling operation, the dehumidification operation, or the heating operation. It is possible to perform control to perform operation or exhaust operation.
  • control unit 130 is connected to the acquisition unit 110, reception unit 120, and remote control 102 via communication lines or the like.
  • the ventilation unit 4 may be configured without the control section 130. In this case, each device of the ventilation unit 4 is controlled by the control section 130 included in the outdoor unit 3.
  • control unit 130 of this embodiment performs a ventilation operation that automatically switches between an air supply operation and an exhaust operation.
  • control unit 130 When the control unit 130 receives a request for ventilation operation that automatically performs air supply operation and exhaust operation, it starts air supply operation. Specifically, upon receiving a request for ventilation operation from the reception unit 120, the control unit 130 rotates the flow path switching member 431 of the switching damper 43 to become the air supply path, and turns the radial fan 432 on. Activate it. As described above, in this embodiment, first, the air supply operation is started as the ventilation operation.
  • the control unit 130 switches from the air supply operation to the exhaust operation when the information regarding the air quality satisfies the first condition.
  • the first condition is a condition in which the supply of outdoor air into the room is stopped and the indoor air is discharged outdoors because the quality of the outdoor air is poor.
  • control unit 130 rotates the flow path switching member 431 of the switching damper 43 so as to become the exhaust path, and starts the radial fan 432.
  • the control unit 130 restarts the air supply operation when the information regarding the air quality no longer satisfies the second condition during the exhaust operation.
  • the second condition is a condition in which the indoor air is stopped being discharged outdoors and the outdoor air is supplied indoors because the quality of the outdoor air is good.
  • the second condition may be the same as or different from the first condition.
  • the second condition is preferably the same or stricter than the first condition. When the second condition is stricter than the first condition, the exhaust operation is likely to be continued.
  • the second condition is stricter than the first condition.
  • the first condition is "a lot” or more
  • the second condition is "slightly a lot” or more.
  • the judgment target in the information is PM2.5
  • the first condition is “a lot” or more
  • the second condition is “slightly a lot” or more.
  • the judgment target in the information is yellow sand
  • the first condition is "a lot” or more
  • the second condition is "slightly a lot” or more.
  • the first condition and the second condition may be based on one piece of information regarding air quality, or may be based on a plurality of pieces of information.
  • the condition is satisfied if at least one judgment target satisfies the condition.
  • the control unit 130 determines that the first condition is satisfied if one or more pieces of information satisfy the first condition.
  • the control unit 130 determines that the second condition is satisfied when one or more pieces of information satisfy the second condition. In other words, when the second condition targets a plurality of pieces of information to be determined, the control unit 130 determines that the second condition is no longer satisfied when all of the information to be determined no longer satisfies the second condition.
  • first condition and the second condition may be set so that they can be changed by the user. Further, the first condition and the second condition may be set so that the user can determine whether a judgment target in a plurality of pieces of air quality information is valid or invalid. Further, the first condition and the second condition may be conditions in which each of the plurality of determination targets is weighted.
  • the control unit 130 After receiving the request for ventilation operation and starting the air supply operation, the control unit 130 continues the air supply operation for a predetermined period of time regardless of the first condition. In other words, after starting the air supply operation, the control unit 130 continues the air supply operation for a predetermined period of time regardless of the quality of the outdoor air.
  • the predetermined time is, for example, one minute or more, and in this embodiment, three minutes or more.
  • control unit 130 switches to air supply operation regardless of the first condition when a predetermined period of time has elapsed after the first condition is satisfied and the operation is switched to exhaust operation.
  • the control unit 130 performs the air supply operation without continuing the exhaust operation for a predetermined period of time, regardless of the quality of the outdoor air.
  • the predetermined time is, for example, one minute or more, and in this embodiment, three minutes or more.
  • predetermined time period during which the air supply operation is continued after the start of the air supply operation and the predetermined time period during which the exhaust operation is not continued may be the same or may be different.
  • control unit 130 of this embodiment basically performs air supply operation as ventilation operation, and temporarily performs exhaust operation depending on the air quality conditions of the outdoor air.
  • the air conditioning system 1 of this embodiment performs heating operation, cooling operation, and dehumidification operation as air conditioning operation, and performs air supply operation and exhaust operation as ventilation operation.
  • Various operations are performed by the control unit 130 controlling each component device.
  • control unit 130 sets the outdoor heat exchanger 24 to function as a refrigerant radiator and the indoor heat exchanger 11 to function as a refrigerant evaporator. Switch the four-way switching valve 22.
  • the low-pressure refrigerant in the refrigeration cycle is sucked into the compressor 21, compressed to the high pressure in the refrigeration cycle, and then discharged.
  • the high-pressure refrigerant discharged from the compressor 21 is sent to the outdoor heat exchanger 24 through the four-way switching valve 22.
  • the high-pressure refrigerant sent to the outdoor heat exchanger 24 exchanges heat with outdoor air supplied by the outdoor fan 29 in the outdoor heat exchanger 24, and radiates heat.
  • the high-pressure refrigerant that has radiated heat in the outdoor heat exchanger 24 is sent to the expansion valve 25 and is reduced in pressure to a low pressure in the refrigeration cycle.
  • the low-pressure refrigerant whose pressure has been reduced in the expansion valve 25 is sent to the indoor heat exchanger 11 through the filter 26, the liquid shutoff valve 27, and the communication pipe 32.
  • the low-pressure refrigerant sent to the indoor heat exchanger 11 exchanges heat with indoor air supplied by the indoor fan 12 in the indoor heat exchanger 11 and evaporates. As a result, the indoor air is cooled and blown into the room.
  • the low-pressure refrigerant evaporated in the indoor heat exchanger 11 is sucked into the compressor 21 again through the connecting pipe 31, the gas shutoff valve 28, the four-way switching valve 22, and the accumulator 23.
  • control unit 130 causes the refrigerant sealed in the refrigerant circuit to circulate through the compressor 21, the outdoor heat exchanger 24, the expansion valve 25, and the indoor heat exchanger 11 in this order.
  • (3-2) Dehumidification operation When performing the dehumidification operation, the control unit 130 controls the outdoor heat exchanger 24 to function as a refrigerant radiator and the indoor heat exchanger 11 to function as a refrigerant evaporator, as in the cooling operation.
  • the four-way switching valve 22 is switched so that it functions as In the dehumidifying operation, similarly to the cooling operation, the control unit 130 causes the refrigerant sealed in the refrigerant circuit to circulate in the order of the compressor 21, the outdoor heat exchanger 24, the expansion valve 25, and the indoor heat exchanger 11. It will be done.
  • control unit 130 sets the outdoor heat exchanger 24 to function as a refrigerant evaporator and the indoor heat exchanger 11 to function as a refrigerant radiator. Switch the four-way switching valve 22.
  • the low-pressure refrigerant in the refrigeration cycle is sucked into the compressor 21, compressed to the high pressure in the refrigeration cycle, and then discharged.
  • the high-pressure refrigerant discharged from the compressor 21 is sent to the indoor heat exchanger 11 through the four-way switching valve 22, the gas shutoff valve 28, and the communication pipe 31.
  • the high-pressure refrigerant sent to the indoor heat exchanger 11 exchanges heat with indoor air supplied by the indoor fan 12 in the indoor heat exchanger 11, and radiates heat. As a result, indoor air is heated and blown into the room.
  • the high-pressure refrigerant that has radiated heat in the indoor heat exchanger 11 is sent to the expansion valve 25 through the communication pipe 32, the liquid shutoff valve 27, and the filter 26, and is reduced in pressure to a low pressure in the refrigeration cycle.
  • the low-pressure refrigerant whose pressure has been reduced in the expansion valve 25 is sent to the outdoor heat exchanger 24 .
  • the low-pressure refrigerant sent to the outdoor heat exchanger 24 exchanges heat with outdoor air supplied by the outdoor fan 29 in the outdoor heat exchanger 24 and evaporates.
  • the low-pressure refrigerant evaporated in the outdoor heat exchanger 24 is sucked into the compressor 21 again through the four-way switching valve 22 and the accumulator 23.
  • control unit 130 causes the refrigerant sealed in the refrigerant circuit to circulate through the compressor 21, the indoor heat exchanger 11, the expansion valve 25, and the outdoor heat exchanger 24 in this order.
  • the control unit 130 rotates the flow path switching member 431 of the switching damper 43 to become the air supply path, and starts the radial fan 432.
  • the radial fan 432 is activated, outdoor air is drawn into the ventilation unit 4 through the air supply/exhaust port 41 of the ventilation unit 4.
  • This outdoor air passes through the air supply path formed by the flow path switching member 431 and is sent to the indoor unit 2 from the supply/exhaust port 14 via the hose 6.
  • the outdoor air supplied to the indoor unit 2 passes through the indoor heat exchanger 11 and is blown out from the air outlet 19 into the room.
  • the indoor air taken in from the indoor unit 2 passes in the opposite direction to the flow path during the air supply operation, and is discharged from the ventilation unit 4 to the outside.
  • step S1 it is checked whether the user has selected the "automatic ventilation mode" of the remote control 102 as the ventilation operation (step S1). Specifically, the control unit 130 determines whether the reception unit 120 has received a request for ventilation operation from the remote controller 102. When the reception unit 120 receives a request for ventilation operation from the remote controller 102, the reception unit 120 transmits the request for ventilation operation to the control unit 130. When the control unit 130 receives a request for ventilation operation from the reception unit 120, it determines that the “automatic ventilation mode” has been selected. If the "automatic ventilation mode" is selected in step S1, the process moves to step S2.
  • step S2 the control unit 130 controls the switching damper 43 to set the air supply path to start the air supply operation.
  • step S3 the control unit 130 determines whether the air supply operation has been continued for a predetermined period of time.
  • step S3 the air supply operation is continued for a predetermined period of time regardless of the first condition. In other words, even if the outdoor air quality is poor, the air supply operation is continued for a predetermined period of time after the air supply operation is started.
  • the predetermined time here is, for example, 3 minutes. If the air supply operation continues for a predetermined period of time, the process moves to step S4.
  • step S4 the control unit 130 determines whether the information regarding the air quality of the outdoor air satisfies the first condition.
  • the information regarding the air quality of the outdoor air acquired by the acquisition unit 110 is transmitted to the control unit 130.
  • the control unit 130 that receives the information determines whether or not this information satisfies the first condition.
  • the acquisition unit 110 periodically acquires information regarding the air quality of outdoor air from the server 101.
  • the acquisition unit 110 may acquire information at predetermined time intervals while the air conditioner 1a or ventilation device 1b is in operation, or may acquire information in response to a request from the control unit 130 in step S4.
  • the control unit 130 determines that the first condition, PM2.5, does not satisfy "a lot” or more, but the first condition, pollen, satisfies "a lot” or more, so the first condition is satisfied.
  • the information regarding the air acquired by the acquisition unit 110 is "slightly high pollen content” and "slightly high PM2.5 content”. In this case, the control unit 130 determines that the first condition is not satisfied because all of the determination targets of the first condition are not satisfied.
  • step S4 if the control unit 130 determines that the information satisfies the first condition, the process moves to step S5. On the other hand, if the control unit 130 determines in step S4 that the information does not satisfy the first condition, the process moves to step S10.
  • step S10 it is checked whether the request for ventilation operation has ended.
  • the "automatic ventilation mode" of the remote controller 102 has been canceled by the user.
  • this ventilation operation is ended.
  • step S10 if the "automatic ventilation mode” is not ended, the air supply operation is continued and the process returns to the step of determining whether the information satisfies the first condition (step S4).
  • step S5 since the quality of the outdoor air is poor, the control unit 130 switches from the air supply operation to the exhaust operation.
  • the control unit 130 controls the switching damper 43 to switch from the air supply path to the exhaust path, and starts the exhaust operation.
  • control unit 130 determines whether the information regarding the air quality of the outdoor air no longer satisfies the second condition (step S6).
  • step S6 the information regarding the air quality of the outdoor air acquired by the acquisition unit 110 is transmitted to the control unit 130.
  • the control unit 130 determines whether or not this information no longer satisfies the second condition.
  • the second condition is that pollen is "slightly high” or higher, and PM2.5 is “slightly high” or higher. It is assumed that the information regarding the air quality acquired by the acquisition unit 110 is that "pollen is slightly high” and "PM2.5 is low”. In this case, the control unit 130 determines that the second condition PM2.5 does not satisfy "slightly high” or higher, but the second condition pollen satisfies "slightly high” or higher, so the second condition is satisfied. . On the other hand, assume that the information regarding the air acquired by the acquisition unit 110 is that "pollen is slightly less” and "PM2.5 is slightly less”. In this case, the control unit 130 determines that the second condition is no longer satisfied because all of the determination targets of the second condition are not satisfied.
  • step S6 when the control unit 130 determines that the information no longer satisfies the second condition, the process moves to step S7.
  • step S7 the air quality of the outdoor air has improved, so the air supply operation is restarted.
  • the control unit 130 controls the switching damper 43 from the exhaust path to the air supply path.
  • step S10 the process moves to a step (step S10) of checking whether the request for ventilation operation has ended.
  • step S10 if the "automatic ventilation mode" of the remote controller 102 has ended, this ventilation operation is ended.
  • step S10 if the "automatic ventilation mode" has not been ended, the process returns to the step of determining whether the air quality satisfies the first condition (step S4).
  • step S6 determines in step S6 that the information satisfies the second condition
  • the process moves to step S8.
  • step S8 the control unit 130 determines whether a predetermined time has elapsed after switching to exhaust operation (step S5).
  • the predetermined time here is, for example, 3 minutes.
  • step S8 if the exhaust operation is not continued for the predetermined period of time, the exhaust operation is continued and the process returns to the step (step S6) of determining whether the information regarding air quality no longer satisfies the second condition.
  • step S8 if the exhaust operation is continued for a predetermined period of time, the process moves to step S9.
  • step S9 the operation is switched to air supply operation regardless of the first condition. In other words, even if the quality of the outdoor air is poor, the air supply operation is temporarily started without continuing the exhaust operation beyond a predetermined time.
  • the air supply operation in step S9 is performed for a predetermined period of time.
  • the predetermined time here is, for example, 3 minutes.
  • the control unit 130 controls the switching damper 43 so that the exhaust path changes to the air supply path. After the air supply operation has been performed for a predetermined period of time, the process returns to the step of switching to the exhaust operation (step S5).
  • the air conditioning system 1 of this embodiment includes an acquisition section 110, a reception section 120, and a control section 130.
  • the acquisition unit 110 acquires information regarding the air quality of outdoor air.
  • the reception unit 120 receives a request for ventilation operation.
  • the control unit 130 performs an air supply operation in which outdoor air is supplied indoors, and an exhaust operation in which indoor air is discharged outdoors.
  • the control unit 130 receives a request for ventilation operation, it starts air supply operation, and when the above information satisfies the first condition, switches from air supply operation to exhaust operation.
  • the air conditioning system 1 of this embodiment when a request for ventilation operation is received, air supply operation is started, so that the amount of ventilation can be ensured. Then, when the information regarding the air quality of the outdoor air satisfies the first condition, in other words, when the outdoor environment has deteriorated, the air supply operation is switched to the exhaust operation. Therefore, the exhaust operation as a ventilation operation can be performed while suppressing the introduction of outdoor air having an air quality that satisfies the first condition into the room. Therefore, the air conditioning system 1 of this embodiment can perform either the air supply operation or the exhaust operation depending on the air quality of the outdoor air.
  • the air conditioning system 1 of the present embodiment basically performs air supply operation, and performs supplementary exhaust operation when the quality of outdoor air is poor, thereby ensuring a sufficient amount of ventilation and improving indoor ventilation. It also maintains air quality.
  • control unit 130 restarts the air supply operation when the above information no longer satisfies the second condition during the exhaust operation.
  • the exhaust operation is switched to the air supply operation. Therefore, outdoor air having an air quality that does not satisfy the second condition can be introduced into the room. Therefore, the amount of ventilation by air supply operation can be increased while maintaining the indoor air quality appropriately.
  • the acquisition unit 110 acquires the above information from the server 101. In this way, information regarding air quality may be acquired from the server 101.
  • the above information includes at least one of pollen, PM2.5, dust, and yellow sand.
  • either the air supply operation or the exhaust operation can be performed depending on at least one of pollen, PM2.5, dust, and yellow sand in the outdoor air. Therefore, at least one of pollen, PM2.5, dust, and yellow sand can be appropriately maintained indoors.
  • control unit 130 continues the air supply operation for a predetermined period of time regardless of the first condition.
  • control unit 130 switches to the air supply operation regardless of the first condition after a predetermined period of time has passed after switching to the exhaust operation.
  • the air supply route and the exhaust route are common, it is possible to enlarge the route through which outdoor air and indoor air pass. Therefore, the amount of air supply and the amount of exhaust air can be improved.
  • the air conditioning system 1 of this embodiment further includes a hose 6, a ventilation device 1b, and an indoor unit 2.
  • the hose 6 shares an air supply route and an exhaust route.
  • the ventilation device 1b is installed outdoors and performs air supply operation and exhaust operation.
  • the indoor unit 2 is connected to the ventilation device 1b via a hose 6.
  • the hose 6 through which the outdoor air to be supplied and the indoor air to be exhausted is common, it is possible to easily realize an air conditioning system 1 that increases the amount of air supplied and the amount of air exhausted.
  • the air conditioning system 1 of this embodiment further includes a switching damper 43.
  • the switching damper 43 performs a switching operation to switch from one of air supply operation and exhaust operation to the other operation.
  • the switching damper 43 allows easy switching between air supply operation and exhaust operation.
  • the acquisition unit 110 acquires information regarding the air quality of outdoor air from the server 101, but the information is not limited thereto.
  • the air conditioning system further includes an outdoor sensor that detects information regarding air quality.
  • the outdoor sensor is placed in the outdoor unit 3 or somewhere outdoors.
  • the acquisition unit 110 acquires information regarding air quality from an outdoor sensor.
  • the acquisition unit 110 is realized by the outdoor sensor itself or an interface that receives information from the outdoor sensor.
  • the acquisition unit 110 periodically acquires detection results from outdoor sensors.
  • the acquisition unit 110 may acquire information at predetermined time intervals while the air conditioner 1a or the ventilation device 1b is in operation.
  • step S7 after restarting the air supply operation (step S7), the air supply operation and exhaust operation are selected based on the first condition (step S4) without continuing the air supply operation for a predetermined period of time. , but not limited to.
  • the air supply operation is continued for a predetermined period of time regardless of the first condition (step S3).
  • the control unit 130 continues the air supply operation for a predetermined period of time regardless of the first condition.
  • the control unit 130 restarts the air supply operation, the control unit 130 continues the air supply operation for a predetermined period of time regardless of the air quality of the outdoor air.
  • the predetermined time is, for example, one minute or more, and in this modification, three minutes or more.
  • step S7 a step of restarting the air supply operation (step S7) is carried out, and in step S10, if the "automatic ventilation mode" is not ended, it is determined whether the air supply operation has elapsed for a predetermined period of time. The process returns to the determining step (step S3).
  • control unit 130 always causes the air supply operation to continue for a predetermined period of time after starting and restarting the air supply operation. Therefore, according to this modification, the amount of ventilation can be further ensured.
  • control unit 130 controls the ventilation operation alone to switch between the air supply operation and the exhaust operation.
  • the air conditioning system 1 of the present disclosure performs the ventilation operation of the above embodiment during the air conditioning operation. Good too.
  • the control unit 130 has a third condition for switching from air supply operation to exhaust operation during at least one of cooling operation and heating operation.
  • the third condition is a condition that makes it easier to switch to exhaust operation than the first condition.
  • the control unit 130 controls when the temperature of the outdoor air is a predetermined temperature or more or the humidity of the outdoor air is a predetermined humidity or more during the cooling operation, or when the temperature of the outdoor air is below the predetermined temperature or when the humidity is a predetermined humidity or more during the heating operation.
  • the air supply operation is switched to the exhaust operation.
  • the predetermined temperature and predetermined humidity can be set arbitrarily.
  • the predetermined temperature is, for example, a difference of 5° C. or more between the temperature set with the remote controller 102 and the temperature of the outdoor air.
  • the predetermined humidity is, for example, a difference of 5% or more between the humidity set by the remote controller 102 and the humidity of the outdoor air.
  • the temperature of the outdoor air is a value measured by the outdoor temperature sensor 33.
  • the humidity of the outdoor air is a value measured by the outdoor humidity sensor 34.
  • control unit 130 restarts the air supply operation when the information regarding the air quality no longer satisfies the fourth condition during the exhaust operation.
  • the fourth condition may be the same as or different from the third condition.
  • the fourth condition is preferably the same as or stricter than the third condition.
  • the exhaust operation is likely to be continued.
  • the fourth condition is stricter than the third condition.
  • the third condition is “slightly high” or higher, and the fourth condition is “low” or higher.
  • the judgment target in the information is PM2.5
  • the third condition is “slightly high” or higher
  • the fourth condition is “slightly low” or higher.
  • the judgment target in the information is yellow sand
  • the third condition is “slightly more” or higher
  • the fourth condition is “less” or higher.
  • the third condition and the fourth condition may be based on one piece of information regarding air quality, or may be based on a plurality of pieces of information.
  • the condition is satisfied if at least one judgment target satisfies the condition.
  • the control unit 130 determines that the third condition is satisfied if one or more pieces of information satisfy the third condition.
  • the fourth condition targets a plurality of pieces of information
  • the control unit 130 determines that the fourth condition is satisfied when one or more pieces of information satisfy the fourth condition.
  • the fourth condition targets a plurality of pieces of information
  • the control unit 130 determines that the fourth condition is no longer satisfied when all of the information to be determined no longer satisfies the fourth condition.
  • the third condition and the fourth condition may be set so that they can be changed by the user. Further, the third condition and the fourth condition may be set so that the user can determine whether a determination target in a plurality of pieces of air quality information is valid or invalid. Further, the third condition and the fourth condition may be conditions in which each of the plurality of determination targets is weighted.
  • (6-3-2) Operation operation (6-3-2-1) Air supply operation during air conditioning operation
  • the control unit 130 performs the above-mentioned cooling operation, dehumidification operation, or heating operation with the air conditioner 1a, and also 1b to perform the above air supply operation.
  • the ventilation unit 4 supplies outdoor air to the supply/exhaust port 14 of the indoor unit 2 via the hose 6.
  • This outdoor air passes through the indoor heat exchanger 11, is cooled, dehumidified, or heated, and then is supplied indoors. Therefore, the outdoor air introduced by the ventilation device 1b is supplied indoors by the air conditioner 1a together with indoor air that has been cooled, dehumidified, or heated.
  • control unit 130 causes the air conditioner 1a to perform the above cooling operation, dehumidification operation, or heating operation, and also causes the ventilation device 1b to perform the above exhaust operation. Control.
  • the ventilation unit 4 supplies indoor air to the ventilation unit 4 from the supply/exhaust port 14 of the indoor unit 2 via the hose 6.
  • This indoor air is exhausted to the outside from the ventilation unit 4. Therefore, part of the indoor air is discharged outside by the ventilation device 1b, and another part of the indoor air is cooled, dehumidified, or heated by the air conditioner 1a through the indoor heat exchanger 11. Supplied indoors.
  • step S1 it is checked whether the user has selected the "automatic ventilation mode" of the remote control 102 as the ventilation operation. If the "automatic ventilation mode" is selected in step S1, the process moves to step S2.
  • step S2 similarly to the above embodiment, the control unit 130 receives the request from the reception unit 120 that has received the request for ventilation operation, and starts the air supply operation.
  • step S3 determines whether the air supply operation has been continued for a predetermined period of time.
  • step S3 if the air supply operation has not been continued for a predetermined period of time, the air supply operation is continued. On the other hand, if the air supply operation continues for a predetermined period of time, the process moves to step S11.
  • step S11 the control unit 130 determines whether cooling operation or heating operation is being performed. If it is determined in step S11 that the cooling operation and heating operation are not being performed, the process moves to step S4, as shown in FIG. 6B.
  • step S12 it is determined whether the temperature of the outdoor air is above a predetermined temperature or the humidity of the outdoor air is above a predetermined humidity during the cooling operation, or whether the temperature of the outdoor air is below a predetermined temperature during the heating operation. Alternatively, it is determined whether the humidity of the outdoor air is below a predetermined humidity.
  • the temperature of the outdoor air is not above the specified temperature or the humidity of the outdoor air is not above the specified humidity, or during heating operation, the temperature of the outdoor air is below the specified temperature or the humidity of the outdoor air is below the specified humidity.
  • step S11 if the temperature of the outdoor air is above a predetermined temperature or the humidity of the outdoor air is above a predetermined humidity during the cooling operation, or if the temperature of the outdoor air is below the predetermined temperature during the heating operation. Alternatively, if the humidity of the outdoor air is below the predetermined humidity, the process moves to step S13.
  • step S13 the control unit 130 determines whether the air quality of the outdoor air satisfies the third condition.
  • the information regarding the air quality of the outdoor air acquired by the acquisition unit 110 is transmitted to the control unit 130.
  • the control unit 130 determines whether or not this information satisfies the third condition.
  • the third condition is that pollen is "slightly high” or higher, and PM2.5 is “slightly high” or higher. It is assumed that the information regarding the air quality acquired by the acquisition unit 110 is "Pollen is slightly high” and "PM2.5 is slightly low”. In this case, the control unit 130 determines that the third condition, PM2.5, does not satisfy "slightly high” or higher, but the third condition, pollen satisfies "slightly high” or higher, so the third condition is satisfied. . On the other hand, it is assumed that the information regarding the air acquired by the acquisition unit 110 is "pollen is low” and "PM2.5 is slightly low”. In this case, the control unit 130 determines that the third condition is not satisfied because all of the determination targets of the third condition are not satisfied.
  • step S13 if the control unit 130 determines that the information satisfies the third condition, the process moves to step S14. On the other hand, if the control unit 130 determines in step S13 that the information does not satisfy the third condition, the process moves to step S10.
  • step S14 the control unit 130 switches from air supply operation to exhaust operation.
  • the control unit 130 controls the switching damper 43 to start the exhaust operation.
  • control unit 130 determines whether the information regarding the air quality of the outdoor air no longer satisfies the fourth condition (step S15).
  • step S15 the information regarding the air quality of the outdoor air acquired by the acquisition unit 110 is transmitted to the control unit 130.
  • the control unit 130 determines whether or not this information no longer satisfies the fourth condition.
  • the fourth condition is that pollen is "less” or higher, and PM2.5 is “slightly lower” or higher. It is assumed that the information regarding the air quality acquired by the acquisition unit 110 is "pollen is low” and "PM2.5 is low”. In this case, the control unit 130 determines that the fourth condition of PM2.5 does not satisfy "slightly low” or higher, but the fourth condition of pollen satisfies "low” or higher, so the second condition is satisfied. On the other hand, assume that the information regarding the air acquired by the acquisition unit 110 is "Pollen has not been published" and "PM2.5 is low.” In this case, the control unit 130 determines that the fourth condition is no longer satisfied because all of the determination targets of the fourth condition are not satisfied.
  • step S15 if the control unit 130 determines that the information no longer satisfies the fourth condition, the process moves to step S7.
  • step S7 the air supply operation is restarted as in the above embodiment.
  • step S15 determines in step S15 that the fourth condition is satisfied, the process moves to step S10.
  • step S12 during the cooling operation, the temperature of the outdoor air is equal to or higher than a predetermined temperature, or the humidity of the outdoor air is equal to or higher than a predetermined humidity. Otherwise, if it is determined that the temperature of the outdoor air is not below the predetermined temperature or the humidity of the outdoor air is not below the predetermined humidity during the heating operation, the process moves to step S4 in FIG. 6B. In this step S4, similarly to the embodiment described above, the control unit 130 determines whether the information regarding the air quality of the outdoor air satisfies the first condition.
  • step S4 if the control unit 130 determines that the information does not satisfy the first condition, the process moves to step S10 in FIG. 6A. On the other hand, if the control unit 130 determines in step S4 that the information satisfies the first condition, the process moves to step S5.
  • step S5 similarly to the above embodiment, the control unit 130 switches from air supply operation to exhaust operation. After that, similarly to the embodiment described above, the control unit 130 determines whether the information regarding the air quality of the outdoor air no longer satisfies the second condition (step S6).
  • step S6 when the control unit 130 determines that the information no longer satisfies the second condition, the process moves to step S7 in FIG. 6A.
  • step S7 the air supply operation is restarted as in the above embodiment.
  • step S6 determines in step S6 that the information satisfies the second condition
  • the process moves to step S8.
  • step S8 similarly to the embodiment described above, the control unit 130 determines whether a predetermined period of time has elapsed after switching to exhaust operation (step S5).
  • step S8 if the exhaust operation has not been continued for a predetermined period of time, the process returns to the step of determining whether the information regarding air quality no longer satisfies the second condition (step S6). On the other hand, in step S8, if the exhaust operation is continued for a predetermined period of time, the process moves to step S9. In step S9, similarly to the embodiment described above, the operation is switched to air supply operation regardless of the first condition. After the air supply operation has been performed for a predetermined period of time, the process returns to the step of switching to the exhaust operation (step S5).
  • step S10 As described above, if it is determined in step S13 that the third condition is not satisfied, if it is determined that the fourth condition is satisfied in step S15, if it is determined that the first condition is not satisfied in step S4, and When the air supply operation is restarted in step S7, the process moves to step S10.
  • step S10 it is checked whether the request for ventilation operation has ended. In step S10, if the "automatic ventilation mode” has ended, this ventilation operation is ended. On the other hand, in step S10, if the "automatic ventilation mode” is not ended, the air supply operation is continued.
  • control unit 130 performs at least one of a cooling operation and a heating operation.
  • the control unit 130 has a third condition for switching from the air supply operation to the exhaust operation during at least one of the cooling operation and the heating operation.
  • the third condition is a condition that makes it easier to switch to exhaust operation than the first condition.
  • control unit 130 has a third condition that makes it easy to switch to exhaust operation during cooling operation and heating operation. Therefore, during cooling operation and heating operation, it is possible to easily switch from air supply operation to exhaust operation.
  • control unit 130 controls the control unit 130 to control the control unit 130 during the cooling operation, when the temperature of the outdoor air is a predetermined temperature or higher or the humidity of the outdoor air is a predetermined humidity or higher, or during the heating operation. If the third condition is satisfied when the temperature of the outdoor air is below a predetermined temperature or the humidity of the outdoor air is below a predetermined humidity, the air supply operation is switched to the exhaust operation.
  • the member forming the air supply route and the exhaust route may be the hose 6, and the air supply port and the exhaust port may be formed separately in the indoor unit 2.
  • outdoor air is supplied into the room from the hose 6 through the air supply port
  • indoor air is introduced into the hose 6 through the exhaust port.
  • the member forming the air supply path and the exhaust path is not limited to the hose 6.
  • the air supply route and the exhaust route may not be common.
  • the hose that constitutes the air supply route and the hose that constitutes the exhaust route may be separate members.
  • Humidification operation is the same as air supply operation in that it supplies outdoor air indoors, but it differs in that it humidifies outdoor air and supplies it indoors.
  • the wall-mounted indoor unit 2 has been described as an example, but the indoor unit of the present disclosure is not limited thereto.
  • the indoor unit of the present disclosure can be of any type, such as a ceiling-embedded type or a floor-standing type.
  • the air conditioning system 1 including one indoor unit 2 has been described as an example, but the air conditioning system of the present disclosure is not limited to this.
  • the air conditioning system of the present disclosure can also be applied to a multi-type system including a plurality of indoor units 2.
  • Air conditioning system 1a Air conditioner 1b: Ventilator 2: Indoor unit 3: Outdoor unit 6: Hose 43: Switching damper 101: Server 110: Acquisition unit 120: Reception unit 130: Control unit

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Abstract

L'invention concerne un système de climatisation (1) qui comprend une unité d'acquisition (110), une unité d'acceptation (120) et une unité de commande (130). L'unité d'acquisition (110) acquiert des informations se rapportant à la qualité de l'air extérieur. L'unité d'acceptation (120) accepte une demande d'opération de ventilation. L'unité de commande (130) effectue, en tant qu'opération de ventilation, une opération d'alimentation en air consistant à fournir de l'air extérieur dans un espace intérieur, et une opération d'évacuation d'air consistant à évacuer l'air intérieur vers l'extérieur. Lors de l'acceptation de la demande pour une opération de ventilation, l'unité de commande (130) commence l'opération d'alimentation en air et, lorsque les informations remplissent une première condition, passe de l'opération d'alimentation en air à l'opération d'évacuation d'air.
PCT/JP2023/032572 2022-09-09 2023-09-06 Système de climatisation WO2024053683A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003176944A (ja) * 2001-12-07 2003-06-27 Daikin Ind Ltd 換気装置および空気調和機
JP2004353879A (ja) * 2003-05-27 2004-12-16 Hitachi Home & Life Solutions Inc 空気調和機
CN105674412A (zh) * 2016-04-06 2016-06-15 王功军 一种能自动调节新风量的家用空调
JP2022097186A (ja) * 2020-12-18 2022-06-30 三菱電機株式会社 空気調和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003176944A (ja) * 2001-12-07 2003-06-27 Daikin Ind Ltd 換気装置および空気調和機
JP2004353879A (ja) * 2003-05-27 2004-12-16 Hitachi Home & Life Solutions Inc 空気調和機
CN105674412A (zh) * 2016-04-06 2016-06-15 王功军 一种能自动调节新风量的家用空调
JP2022097186A (ja) * 2020-12-18 2022-06-30 三菱電機株式会社 空気調和装置

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