Air purification system, program and control method for air purification system

Abstract

To provide an air purification system for efficiently sending indoor air to an air purification device to efficiently purify an indoor space, a program and a control method for the air purification system.SOLUTION: An air purification system includes: indoor units for a plurality of air conditioners installed in an indoor space to be air-conditioned; a first air purification device that purifies air in the indoor space sucked from a suction port and discharges the purified air from an exhaust port to the indoor space; and a control device that when executing an air purification mode of purifying the indoor air, drives the first air purification device and an indoor fan provided in the preset indoor unit and controls a posture of a flap provided in the preset indoor unit so that air blown out from the indoor unit flows toward a direction of the suction port.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to an air purification system, a program, and a method for controlling an air purification system. [Background technology]

[0002] Patent Document 1 discloses an air conditioning system including a first type air conditioner that performs air conditioning control to approach a set first temperature setting value, a second type air conditioner that performs air conditioning control to approach a set second temperature setting value, and a humidity control device that performs humidity control on the air that has been air conditioned by the second type air conditioner to approach a set humidity setting value. The humidity control device also sprays water containing an air purifying component onto the air that has been air conditioned by the second type air conditioner to approach the humidity setting value. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-139443 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to provide an air purification system, a program, and a control method for an air purification system that circulates indoor air and efficiently purifies the indoor air. [Means for solving the problem]

[0005] The air purification system of the present disclosure is an air purification system comprising indoor units of an air conditioner installed in a plurality of rooms to be air-conditioned, a first air purification device that purifies the air drawn into the rooms through an air intake port and exhausts the purified air into the rooms through an exhaust port, and a control device that, when executing an air purification mode for purifying the air in the rooms, drives the first air purification device and an indoor fan provided in a preset indoor unit, and controls the posture of a flap provided in the preset indoor unit so that the air blown out by the indoor units is directed toward the air intake port.

[0006] The program in the present disclosure is an air purification system including indoor units of air conditioners installed in a plurality of rooms to be air-conditioned, a first air purification device that purifies the air drawn into the rooms through an air intake port and exhausts the purified air into the rooms through an exhaust port, and a control device, and causes a processor mounted on the control device to drive the first air purification device and an indoor fan provided in a preset indoor unit when an air purification mode for purifying the air in the rooms is executed, and to control the attitude of a flap provided in the preset indoor unit so that the air blown out by the indoor unit is directed toward the air intake port.

[0007] The control method for an air purification system in the present disclosure is a control method for an air purification system including indoor units of an air conditioner installed in a room to be air-conditioned, a first air purification device that purifies the air drawn into the room through an air intake port and exhausts the purified air into the room through an exhaust port, and a control device, wherein when the control device executes an air purification mode for purifying the air in the room, the control device drives the first air purification device and an indoor fan provided in a preset indoor unit, and controls the posture of a flap provided in the preset indoor unit so that the air blown out by the indoor unit is directed toward the air intake port. Effect of the Invention

[0008] The air purification system, program, and control method for the air purification system disclosed herein drive the first air purification device and the indoor fan, and control the preset position of a flap provided in the indoor unit so that air blown out from the indoor unit is directed toward the air intake port. This allows indoor air to be sent to the first air purification device and purified by the first air purification device, thereby efficiently purifying the indoor air. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a system configuration diagram of an air purification system according to an embodiment. [Diagram 2] FIG. 1 is a diagram showing an installation environment of an air purifying device and an air conditioning device. [Diagram 3] FIG. [Figure 4] FIG. 13 is a diagram showing the flap positions that can be selected by remote control operation. [Diagram 5] FIG. 1 is a block diagram showing a configuration of an air purification device. [Figure 6] FIG. 1 is a block diagram showing the configuration of an air conditioning apparatus. [Figure 7] 6 is a flowchart showing the operation of a second control unit. [Figure 8] 6 is a flowchart showing the operation of a second control unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (The knowledge and other information that formed the basis of this disclosure) At the time when the inventors came up with the present disclosure, the air purification system disclosed in Patent Document 1 was known as a conventional air purification system. However, the inventors discovered a problem with the conventional technology in that, when the air conditioner is operating, the air in the room to be conditioned is not efficiently sent to the air purification device, the air in the room cannot be efficiently purified, and the cleanliness of the room cannot be maintained. In order to solve this problem, the inventors came up with the subject matter of the present disclosure. Therefore, the present disclosure provides an air purification system, a program, and a control method for an air purification system that efficiently sends indoor air to an air purification device and efficiently purifies the room.

[0011] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, in some cases, more detailed explanations than necessary may be omitted. For example, detailed explanations of already well-known matters or duplicate explanations of substantially the same configurations may be omitted. The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0012] (Embodiment) An embodiment will be described with reference to the accompanying drawings. [1-1. Configuration] [1-1-1. System configuration of air purification system] FIG. 1 is a diagram showing the system configuration of an air purification system 1. As shown in FIG. The air purification system 1 includes an air purification device 100 and a plurality of air conditioners 200.

[0013] FIG. 1 shows the air purification system 1 including one air purification device 100, but the number of air purification devices 100 included in the air purification system 1 is not limited to one, and may be two or more.

[0014] 1 shows a case where the air purification system 1 includes two air conditioners 200, air conditioner 200A and air conditioner 200B. However, the number of air conditioners 200 included in the air purification system 1 is not limited to two. For example, the air purification system 1 may be configured to include one air conditioner 200, or three or more air conditioners 200. Hereinafter, when air conditioner 200A and air conditioner 200B are collectively referred to, they will be referred to as air conditioner 200.

[0015] Air purification device 100, air conditioning device 200A, and air conditioning device 200B are connected to each other so that they can communicate data with each other via network 10. Network 10 can be, for example, a network constructed by a Wi-Fi (registered trademark) router (not shown) that functions as an access point.

[0016] A CO2 sensor 201A that measures a CO2 concentration is connected by wire to the air conditioning device 200A, and a CO2 sensor 201B that measures a CO2 concentration is connected by wire to the air conditioning device 200B. The connection between the air conditioning device 200A and the CO2 sensor 201A may be wireless. Similarly, the connection between the air conditioning device 200B and the CO2 sensor 201B may also be wireless.

[0017] FIG. 2 is a diagram showing the installation environment of the air purification device 100 and air conditioners 200A and 200B. The air purification device 100 is installed in the attic 70 . An air intake port 51 and an air exhaust port 53 are formed in the room 50 . The air intake port 51 is an opening through which the air purifying device 100 takes in air from the room 50 , and the air exhaust port 53 is an opening through which the air purified by the air purifying device 100 is returned to the room 50 . The air intake 51 and the air purifying device 100 are connected by an air intake duct 71 . Air from the room 50 taken in through the air intake 51 is sent to the air purifier 100 via the air intake duct 71 . The air purifying device 100 and the exhaust port 53 are connected by an exhaust duct 73 . The air purified by the air purification device 100 is sent to the exhaust port 53 via the exhaust duct 73 and is exhausted from the exhaust port 53 into the room 50 .

[0018] FIG. 3 is a perspective view of the indoor unit 260A. Since the indoor units 260A and 260B have the same configuration and shape, the configuration of the indoor unit 260A will be described here. The air conditioning devices 200A and 200B are ceiling-embedded air conditioning devices in which casings 220A, 220B of the indoor units 260A and 260B are embedded in the ceiling space 70. The casing 220A has a rectangular cylindrical shape, and a decorative panel 230A is attached to the lower surface of the casing 220A. The decorative panel 230A is disposed along a ceiling surface 60 of the room 50.

[0019] An air inlet 231A is formed in the center of the decorative panel 230A. A filter 233A is provided in the air inlet 231A. Four air outlets 241A, 242A, 243A, and 244A are formed near the periphery of the decorative panel 230A along each side of the decorative panel 230A. Hereinafter, the air outlets 241A, 242A, 243A, and 244A are collectively referred to as air outlet 240A. Flaps 251A, 252A, 253A, and 254A are provided in the four air outlets 240A, respectively. Hereinafter, the flaps 251A, 252A, 253A, and 254A are collectively referred to as flap 250A.

[0020] The flap 250A is a plate-like member for adjusting the flow rate and direction of air blown out from the air outlet 240A. The cross-sectional shape of the flap 250A is curved in a substantially arc shape. The flap 250A is attached to the casing 220A so as to cover the air outlet 240A and to be rotatable within a predetermined angle range around a rotation axis (not shown) extending in the longitudinal direction of the flap 250A. The flap 250A is rotationally driven by a flap motor (not shown).

[0021] Fig. 4 is a diagram showing the posture of flap 250A that can be selected by operating remote control 30. For the sake of simplicity, flap 250A shown in Fig. 4 is represented by a straight line connecting near end 255, which is the end of flap 250A closer to the rotation axis, and far end 257, which is the end of flap 250A away from the rotation axis.

[0022] The flap 250A is configured so that the inclination angle can be changed in stages. The positions of the flap 250A in this embodiment include six positions F0 to F5. The orientation F0 and the orientation F1 are orientations in which the angle of the line connecting the proximal end 255 and the distal end 257 of the flap 250A is upward relative to the horizontal.

[0023] The position F0 of the flap 250A is a position that is mainly taken when the operation of the air conditioning apparatus 200A is stopped, and is a position in which most of the air outlet 240A is blocked.

[0024] The orientation F1 is an orientation downward by an angle α from the orientation F0. The position F1 of the flap 250A is the position that the flap 250A is set to when the air blown out from the air outlet 240A is sent to the air purification device 100. For example, it is assumed that the flap 250A provided at the air outlet 240A that is closest to the air inlet 51 and from which the air blown out of the air outlet 240A faces the direction of the air inlet 51 is the flap 251A shown in Fig. 3. When executing an air purification mode for purifying the air in the room, the second control unit 280A described later drives the flap motor so that the attitude of the flap 251A becomes the attitude F1. The second control unit 280A also drives the flap motors so that the attitudes of the other flaps 252A, 253A, and 254A become the attitude F0.

[0025] The positions F2 to F5 are positions in which the angle of the line connecting the proximal end 255 and the distal end 257 of the flap 250A is downward relative to the horizontal. The orientation F2 is an orientation directed downward by an angle α from the orientation F1. The orientation F3 is an orientation directed downward by an angle α from the orientation F2. The attitude F4 is an attitude directed downward by an angle α from the attitude F3. The attitude F5 is an attitude directed downward by an angle α from the attitude F4.

[0026] [1-1-2. Air purifier configuration] FIG. 5 is a block diagram showing the configuration of the air purifying device 100. As shown in FIG. The air purifying device 100 includes a first wireless communication I / F 110, a first air purifying unit 130, and a first control unit 150. "I / F" is an abbreviation that omits the term "interface." The air purifying device 100 corresponds to the first air purifying device.

[0027] The first wireless communication I / F 110 includes hardware such as a wireless LAN (Local Area Network) card, and performs wireless communication using the Wi-Fi system based on, for example, the IEEE 802.11 standard or a standard equivalent thereto. When the air purifying device 100 is connected to an access point and is ready to perform wireless communication using the Wi-Fi system, it performs data communication with the air conditioning devices 200A and 200B via the access point. The communication system of the first wireless communication I / F 110 is not limited to Wi-Fi, and may be, for example, short-range wireless communication such as Bluetooth (registered trademark).

[0028] The first air purifier 130 is a device that purifies the air flowing in from the intake duct 71 by releasing water containing a sterilizing substance. For example, the first air purifier 130 sterilizes bacteria and the like contained in the air and deodorizes the air by permeating a sterilizing substance into a filter and passing the air through the filter. The sterilizing substance includes, for example, hypochlorous acid and ozone.

[0029] The first control unit 150 is a computer device including a first storage unit 151 and a first processor 153.

[0030] The first storage unit 151 includes at least a non-volatile storage device. The first storage unit 151 is used as a calculation area for the first processor 153. The first storage unit 151 also stores a control program executed by the first processor 153 and setting data that is a setting related to the operation of the air purifying device 100.

[0031] The first processor 153 is an arithmetic processing device including a processor such as a CPU (Central Processing Unit) or an MPU (Micro-Processing Unit). The first processor 153 may be configured with a single processor, or may be configured with multiple processors. The first processor 153 may be configured with a part or all of the first storage unit 151 or a system on a chip (SoC) integrated with other circuits. The first processor 153 may be configured with a combination of a CPU that executes a program and a DSP (Digital Signal Processor) that executes a predetermined arithmetic processing. Furthermore, all of the functions of the first processor 153 may be implemented in hardware, or may be configured using a programmable device.

[0032] [1-1-3. Air conditioner configuration] FIG. 6 is a block diagram showing the configuration of the air conditioning device 200A. Air conditioner 200A and air conditioner 200B have substantially the same configuration. For this reason, the configuration of air conditioner 200A will be explained below as a representative, and an explanation of the configuration of air conditioner 200B will be omitted.

[0033] The air conditioning device 200A includes an indoor unit 260A and an outdoor unit 290A.

[0034] The indoor unit 260A includes a second wireless communication I / F 261A, a remote control light receiving unit 263A, an indoor fan 265A, an indoor heat exchanger 267A, a flap 250A, a second air purification unit 269A, and a second control unit 280A.

[0035] The second wireless communication I / F 261A includes hardware such as a wireless LAN card, and performs wireless communication using the Wi-Fi method based on the IEEE 802.11 standard or a standard equivalent thereto. When the indoor unit 260A accesses an access point and is ready to perform wireless communication using the Wi-Fi method, it performs data communication with the air conditioning device 200B and the air purifying device 100 via the access point. The communication method of the second wireless communication I / F 261A is not limited to Wi-Fi, and may be short-range wireless communication such as Bluetooth.

[0036] The remote control light receiving unit 263A is a receiving device for an infrared signal, and includes a light receiving element, a decoder, and the like (not shown). The remote control light receiving unit 263A receives and decodes an infrared signal transmitted from the remote control 30. The remote control light receiving unit 263A decodes the infrared signal, and outputs an instruction signal corresponding to an operated operation key or button of the remote control 30 to the second control unit 270A. The remote control light receiving unit 263A may be configured to receive a wireless signal such as Bluetooth from the remote control 30. When receiving a wireless signal, the remote control light receiving unit 263A may include an antenna and a receiving circuit.

[0037] In this embodiment, an example is described in which a dedicated remote control 30 for operating the air conditioning device 200A is provided, but the remote control 30 may be a mobile terminal such as a smartphone. In this case, operation keys and the like are displayed on the touch panel of the mobile terminal by application software installed on the mobile terminal.

[0038] The indoor fan 265A is driven by the rotation of a fan motor (not shown) and draws air from the room 50 through the air inlet 231A. The indoor heat exchanger 267A exchanges heat with the air drawn into the indoor unit 260A by the indoor fan 265A. The air that has undergone heat exchange is blown out into the room 50 through the air outlet 240A.

[0039] The second air purification sections 269A and 269B correspond to a second air purification device. The second air purifier 269A includes a discharge device 271A, and is configured to electrostatically atomize moisture in the air by generating discharge in the discharge device 271A. In more detail, when a voltage is applied from a power supply circuit in the discharge device 271A, a discharge occurs between a discharge electrode and a counter electrode. The power supply circuit, the discharge electrode, and the counter electrode are not shown. This causes the liquid held in the discharge electrode to be electrostatically atomized. As a result, the discharge device 271A generates various components consisting of nanometer-sized charged fine water particles containing radicals. The various components generated by the discharge in the discharge device 271A are, for example, charged fine particles containing OH radicals. These components are the basis for achieving useful effects related to air purification, such as sterilization, deodorization, moisturization, freshness preservation, or virus inactivation.

[0040] The second air purifier 269A may also be configured to include a counter electrode, and a voltage is applied to the counter electrode to generate a streamer discharge, which is a type of plasma discharge, to generate active species with high oxidative decomposition power. These active species include high-speed electrons, ions, hydroxyl radicals, and excited oxygen molecules, and decompose harmful and odorous components in the air, such as ammonia, aldehydes, and nitrogen oxides, which are small organic molecules.

[0041] Moreover, second air purification section 269A may be an ion generating device that generates ions by discharging electricity from an electrode.

[0042] The second control unit 280A is a computer device including a second storage unit 281A and a second processor 283A.

[0043] The second storage unit 281A includes at least a non-volatile storage device. The second storage unit 281A may include a volatile storage device in addition to the non-volatile storage device. The non-volatile storage device is, for example, a Read Only Memory (ROM), a flash memory, an Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. The volatile storage device is, for example, a Random Access Memory (RAM), etc.

[0044] The second storage unit 281A is used as a calculation area for the second processor 283A. The second storage unit 281A also stores the control program executed by the second processor 283A and setting data that is settings related to the operation of the air conditioning apparatus 200A.

[0045] The second processor 283A is an arithmetic processing device having a processor such as a CPU or an MPU. The second processor 283A may be configured with a single processor, or may be configured with multiple processors. The second processor 283A may be configured with a SoC integrated with a part or all of the second storage unit 281A or other circuits. The second processor 283A may be configured with a combination of a CPU that executes a program and a DSP that executes a predetermined arithmetic processing. Furthermore, the second processor 283A may be configured with all of its functions implemented in hardware, or may be configured using a programmable device.

[0046] The outdoor unit 290A is provided with an outdoor heat exchanger 291A that exchanges heat with outdoor air, and an outdoor unit fan 292A that draws outdoor air into the outdoor unit 290A and blows out the air that has been heat exchanged in the outdoor heat exchanger 291A to the outside. In addition, the outdoor unit 290A is provided with a compressor 293A that executes a refrigeration cycle with the indoor heat exchanger 267A and the outdoor heat exchanger 291A, an expansion valve 294A, a four-way valve 295A, and the like.

[0047] In the following explanation, a case will be described in which the second control unit 280A of the air conditioning device 200A operates as a control device of the present invention. However, the second control unit 280B of the air conditioning device 200B or the first control unit 150 of the air purifying device 100 may also be operated as a control device. Furthermore, in addition to the air conditioning devices 200A, 200B and the air purifying device 100, a control device may be provided separately, and the operation of the air conditioning devices 200A, 200B and the air purifying device 100 may be controlled by this control device.

[0048] The second control unit 280A performs data communication with the air purifying device 100 and the air conditioner 200 connected to the network 10, and executes an air purification mode in which the air in the room 50 is purified.

[0049] First, second control unit 280A determines whether or not an instruction signal indicating that the air purification mode has been selected has been input from remote control light receiving unit 263A. When an instruction signal indicating that the air purification mode has been selected is input from remote control light receiving unit 263A, second control unit 280A determines the operating states of air conditioners 200A and 200B. In this embodiment, for the sake of simplicity, it is assumed that there are no cases in which the operating states of air conditioners 200A and 200B are different. For example, it is assumed that when the operating state of air conditioner 200A is cooling operation, the operating state of air conditioner 200B is also cooling operation, and when the operating state of air conditioner 200A is heating operation, the operating state of air conditioner 200B is also heating operation.

[0050] The operating states of the air conditioning apparatus 200A and the air conditioning apparatus 200B may be different. In this case, the second control section 280A transmits a command to the air conditioning apparatus 200B and acquires information relating to the operating state of the air conditioning apparatus 200B from the air conditioning apparatus 200B.

[0051] First, a case where the air conditioners 200A and 200B are in cooling operation will be described. When the operating state of the air conditioning apparatuses 200A and 200B is cooling operation, the second control unit 280A transmits an instruction signal to the air conditioning apparatus 200B to instruct the second air purifying unit 269B to start operating. After that, the second control unit 280A starts the operation of the second air purifying unit 269A of the air conditioning apparatus 200A.

[0052] Next, the second control unit 280A acquires the CO2 concentration in the room 50 measured by the CO2 sensor 201A from the second storage unit 281A. The second control unit 280A compares the acquired CO2 concentration with a threshold value. If the acquired CO2 concentration is lower than the threshold value, the second control unit 280A does not control the attitude of the flaps 250A and 250B, and monitors whether there is a change in the operating state of the air conditioning devices 200A and 200B.

[0053] Furthermore, when the acquired CO2 concentration is equal to or higher than the threshold value, the second control section 280A starts controlling the attitude of the flap 250A of the indoor unit 260A and the flap 250B of the indoor unit 260B. If the CO2 concentration is equal to or higher than the threshold value, it is determined that the number of people in the room 50 is equal to or higher than a predetermined number. If the number of people increases, it is estimated that the concentrations of pollen, dust, PM2.5, bacteria, allergens, etc. in the room 50 will also increase. For this reason, the second control unit 280A starts controlling the attitude of the flap 250A of the indoor unit 260A and the flap 250B of the indoor unit 260B.

[0054] The second control unit 280A transmits an instruction signal to the air conditioning device 200B to control the attitude of the flap 250B included in the indoor unit 260B. This instruction signal is a signal to instruct the air conditioning device 200B to control the attitude of the preset flap 250B to attitude F1 and to control the attitude of the flaps 250B other than the preset flap 250B to attitude F0.

[0055] When the second control unit 280B of the air conditioning apparatus 200B receives a command signal from the air conditioning apparatus 200A, it controls the preset position of the flap 250B to be the position F1. This preset flap 250B is the flap 251B closest to the intake port 51, or the flap 250B provided at the outlet 240B from which the air blown out from the outlet 240B faces the direction of the intake port 51. It is assumed that this flap 250B is the flap 251B. Further, the second control unit 280B controls the postures of the flaps 252B, 253B, and 254B other than the flap 251B to be the posture F0.

[0056] When the second control section 280A transmits a command signal to the air conditioning apparatus 200B, it also controls the position of the flap 250A of the indoor unit 260A of the air conditioning apparatus 200A. The second control unit 280A controls the attitude of the preset flap 250A to be the attitude F1. This preset flap 250A is the flap 251A closest to the intake port 51, or the flap 251A provided at the outlet 240A from which the air blown out from the outlet 240A faces the intake port 51. The second control unit 280A also controls the attitudes of the flaps 252A, 253A, and 254A other than this flap 251A to be the attitude F0.

[0057] Here, when the operating state of the air conditioners 200A and 200B is cooling operation, the second control unit 280A does not transmit an instruction signal to the air purifier 100 to instruct the start of operation. In other words, when the operating state of the air conditioners 200A and 200B is cooling operation, the air purifier 100 is in a stopped state. This is because the first air purifier 130 of the air purifier 100 is a device that purifies the air flowing in from the intake duct 71 by releasing water containing a sterilizing substance, and there is a risk that the humidity in the room 50 will increase when the air purifier 100 is operated. For this reason, during cooling operation, the second air purifiers 269A and 269B provided in the indoor units 260A and 260B are driven to cool the room 50 while suppressing an increase in humidity in the room 50, and further purify the air in the room 50.

[0058] Next, a case where the operating state of the air conditioners 200A and 200B is heating operation will be described. First, when the operating state of the air conditioners 200A and 200B is heating operation, the second control unit 280A transmits an instruction signal to start operation to the air purifying device 100, and causes the air purifying device 100 to start operation.

[0059] The control thereafter by the second control section 280A is the same as that during the cooling operation. That is, the second control unit 280A transmits an instruction signal to the air conditioner 200B to start the operation of the second air purifier 269B, and starts the operation of the second air purifier 269A of the air conditioner 200A. After that, the CO2 concentration in the room 50 measured by the CO2 sensor 201A is acquired, and the acquired CO2 concentration is compared with a threshold value. If the acquired CO2 concentration is equal to or greater than the threshold value, the second control unit 280A transmits an instruction signal to the air conditioner 200B to control the attitude of the flap 250B provided in the indoor unit 260B. In addition, the second control unit 280A starts controlling the attitude of the flap 250A provided in the indoor unit 260A of the air conditioner 200A.

[0060] Next, a case where the operating state of the air conditioners 200A and 200B is the thermo-off state will be described. First, when the operating state of the air conditioners 200A and 200B is the thermo-off state, the second control unit 280A transmits an instruction signal to the air purifier 100 to start operation, causing the air purifier 100 to start operation.

[0061] Next, the second control unit 280A transmits an instruction signal to increase the airflow rate to the air conditioning apparatus 200B, and increases the airflow rate of the air blown out by the air conditioning apparatus 200A. The second control unit 280A increases the rotation speed of the indoor fan 265A, and increases the airflow rate output from the indoor unit 260A. The second control section 280B, which has received a command signal from the air conditioning apparatus 200A, also increases the rotation speed of the indoor fan 265B, and increases the volume of air output from the indoor unit 260B.

[0062] Next, the second control unit 280A transmits an instruction signal for controlling the attitude of the flap 250B of the indoor unit 260B to the air conditioning device 200B. This instruction signal is a signal for instructing the air conditioning device 200B to control the attitude of the preset flap 250B to the attitude F1 and to control the attitude of the flaps 250B other than the preset flap 250B to the attitude F0.

[0063] When the second control unit 280B of the air conditioning apparatus 200B receives an instruction signal from the air conditioning apparatus 200A, it controls the preset position of the flap 251B to be the position F1. In addition, the second control unit 280B controls the positions of the flaps 252B, 253B, and 254B other than the flap 251B to be the position F0.

[0064] When the second control section 280A transmits a command signal to the air conditioning apparatus 200B, it also controls the position of the flap 250A of the indoor unit 260A of the air conditioning apparatus 200A. The second control unit 280A controls the preset position of the flap 251A to be the position F1. The second control unit 280A also controls the positions of the flaps 252A, 253A, and 254A other than the flap 251A to be the position F0.

[0065] [1-1-4. Air conditioner operation] 7 and 8 are flowcharts showing the operation of the second control section 280A of the air conditioning apparatus 200A. The operation of the second control section 280A will be described with reference to the flowcharts shown in FIGS.

[0066] First, the second control unit 280A judges whether or not an instruction signal instructing the air conditioning apparatuses 200A and 200B to start operating has been input from the remote control light receiving unit 263A. The remote control 30 is provided with buttons for instructing the start of cooling operation, heating operation, and the like. When the user presses a button instructing the start of cooling operation or heating operation and the remote control light receiving unit 263A receives an infrared signal transmitted from the remote control 30, the remote control light receiving unit 263A outputs an instruction signal corresponding to the operated button to the second control unit 280A. If an instruction signal instructing the start of operation has not been input (step S1 / NO), the second control unit 280A waits until an instruction signal is input.

[0067] When an instruction signal instructing the start of cooling operation, heating operation, or the like is input (step S1 / YES), the second control unit 280A starts operation of the air conditioning apparatuses 200A and 200B (step S2). Specifically, the second control unit 280A starts operation of the air conditioning apparatus 200A, and transmits an instruction signal instructing the air conditioning apparatus 200B to start operation.

[0068] Next, second control unit 280A determines whether or not an instruction signal to turn on the air purification mode has been input from remote control 30 (step S3). Remote control 30 is provided with a button for turning on the air purification mode. When a user presses this button and receives an infrared signal transmitted from remote control 30, remote control light receiving unit 263A outputs an instruction signal corresponding to the operated button to second control unit 280A.

[0069] If an instruction signal to turn on the air purification mode has not been input (step S3 / NO), the second control unit 280A determines whether or not an instruction signal to end operation such as cooling operation or heating operation has been input from the remote control light receiving unit 263A (step S4). If an instruction signal to end operation is input (step S4 / YES), the second control unit 280A ends the operation of the air conditioning apparatuses 200A and 200B. Specifically, the second control unit 280A ends the operation of the air conditioning apparatus 200A, and transmits an instruction signal to air conditioning apparatus 200B to end operation.

[0070] Moreover, if the instruction signal instructing the end of operation has not been input (step S4 / NO), the second control unit 280A returns to the determination in step S3. When an instruction signal to turn on the air purification mode is input (step S3 / YES), the second control unit 280A determines whether or not the operating state of the air conditioners 200A and 200B is the heating operation (step S5).

[0071] If the operating state of the air conditioners 200A and 200B is the heating operation (step S5 / YES), the second control unit 280A transmits an instruction signal to the air purifying device 100 to instruct it to start operating (step S6). This causes the air purifying device 100 to start operating.

[0072] Next, the second control unit 280A transmits an instruction signal to the air conditioner 200B to instruct the second air purifying unit 269B to start operating (Step S7). As a result, the second air purifying unit 269B of the air conditioner 200B starts operating. Furthermore, the second control unit 280A starts operation of the second air purification unit 269A of the air conditioner 200A (step S8).

[0073] Next, the second control unit 280A acquires the CO2 concentration from the second storage unit 281A and compares the acquired CO2 concentration with a threshold value. If the second control unit 280A determines that the CO2 concentration is lower than the threshold value (step S9 / NO), the second control unit 280A does not control the attitude of the flaps 250A and 250B, and proceeds to the determination of step S21 in the flowchart shown in FIG.

[0074] If the CO2 concentration is equal to or higher than the threshold value (step S9 / YES), the second control unit 280A determines that a predetermined number of people or more are gathered in the room 50, and transmits an instruction signal to the air conditioning device 200B to instruct it to change the position of the flap 250B (step S10). This instruction signal is a signal to instruct the air conditioning device 200B to control the position of the preset flap 250B to position F1, and to control the position of the flaps 250B other than the preset flap 250B to position F0.

[0075] Upon receiving an instruction signal from the air conditioning apparatus 200A, the second control unit 280A controls the preset posture of the flap 251B to a posture F1, and controls the preset postures of the flaps 252B, 253B, and 254B other than the flap 251B to a posture F0.

[0076] Next, the second control unit 280A controls the attitude of the flap 251A, which is the preset flap 250A, to the attitude F1 (step S11). Next, the second control unit 280A controls the attitudes of the flaps 252A, 253A, and 254A, which are the flaps 250A other than the preset flap 250A, to the attitude F0 (step S12). After that, the second control unit 280A proceeds to the determination of step S21 in the flowchart shown in FIG. 8.

[0077] Next, when the second control unit 280A determines in step S5 that the operation is not heating operation (step S5 / NO), it determines whether the operation state of the air conditioners 200A and 200B is cooling operation (step S13). If the operation state of the air conditioners 200A and 200B is cooling operation (step S13 / YES), the second control unit 280A performs the processes of steps S7 to S12, and proceeds to the determination of step S21 in the flowchart shown in FIG.

[0078] The operation of the air conditioning apparatus 200A will continue to be described with reference to the flowchart shown in FIG. When determining that the operation is not cooling in step S13 shown in FIG. 7 (step S13 / NO), the second control unit 280A determines whether the operating state of the air conditioners 200A and 200B is thermo-off (step S14). If the operating state of the air conditioners 200A and 200B is not thermo-off (step S14 / NO), the second control section 280A proceeds to the determination in step S21.

[0079] Furthermore, if the operating states of the air conditioners 200A and 200B are thermo-off (step S14 / YES), the second control unit 280A transmits an instruction signal to the air purifying device 100 to instruct it to start operating (step S15). This causes the air purifying device 100 to start operating.

[0080] Next, the second control section 280A transmits to the air conditioner 200B a command signal to increase the volume of air blown out from the indoor unit 260B by a preset set amount (step S16). Specifically, the second control unit 280A transmits to the air conditioner 200B a command signal to increase the rotation speed of the motor that drives the indoor fan 265B by a predetermined number.

[0081] Next, the second control section 280A increases the rotation speed of the motor that drives the indoor fan 265A by a predetermined number, and increases the volume of air blown out from the indoor unit 260A by a preset amount (step S17).

[0082] Next, the second control unit 280A transmits an instruction signal to the air conditioning device 200B to instruct the air conditioning device 200B to change the position of the flap 250B (step S18). This instruction signal is a signal to instruct the air conditioning device 200B to control the position of the preset flap 250B to the position F1, and to control the position of the flaps 250B other than the preset flap 250B to the position F0.

[0083] Upon receiving an instruction signal from the air conditioning apparatus 200A, the second control unit 280A controls the preset posture of the flap 251B to a posture F1, and controls the preset postures of the flaps 252B, 253B, and 254B other than the flap 251B to a posture F0.

[0084] Next, the second control unit 280A controls the attitude of the flap 251A, which is the preset flap 250A, to the attitude F1 (step S19). Next, the second control unit 280A controls the attitude of the flaps 252A, 253A, and 254A, which are the flaps 250A other than the preset flap 250A, to the attitude F0 (step S20).

[0085] Next, the second control unit 280A determines whether or not an instruction signal to turn off the air purification mode has been input from the remote control 30 (step S21). When an instruction signal to turn off the air purification mode has been input (step S21 / YES), if the air purification device 100 is operating, the second control unit 280A transmits an instruction signal to the air purification device 100 to stop operation (step S22).

[0086] Next, if the second air purifying unit 269B of the air conditioning apparatus 200B is operating, the second control unit 280A transmits an instruction signal to the air conditioning apparatus 200B to instruct the air conditioning apparatus 200B to stop operation of the second air purifying unit 269B (step S23). After that, if the second air purifying unit 269A of the air conditioning apparatus 200A is operating, the second control unit 280A stops operation of the second air purifying unit 269A (step S24). Then, the second control unit 280A returns to the judgment of step S4.

[0087] Furthermore, if a command signal to turn off the air purification mode has not been input (step S21 / NO), the second control unit 280A determines whether or not a command signal to stop the cooling operation or the heating operation has been input (step S25). If a command signal to stop the operation has not been input (step S25 / NO), the second control unit 280A returns to the judgment of step S5.

[0088] Furthermore, if an instruction signal to stop operation is input (step S25 / YES), the second control unit 280A stops operation of the air conditioning apparatuses 200A and 200B (step S26). Specifically, the second control unit 280A starts operation of the air conditioning apparatus 200A, transmits an instruction signal to the air conditioning apparatus 200B to stop operation, and ends this processing flow.

[0089] [1-1-5. Effects, etc.] As described above, the air purification system 1 of the embodiment includes air conditioners 200A, 200B and the air purification device 100. In the air conditioners 200A, 200B, a plurality of indoor units 260A, 260B are installed in a room 50. The air purifier 100 purifies the air in the room 50 taken in through an air intake 51, and exhausts the purified air from an air exhaust 53 to the room 50.

[0090] When executing an air purification mode for purifying the air in the room 50, the second control unit 280A of the air conditioning apparatus 200A drives the air purifier 100 and the indoor fans 265A, 265B equipped in the indoor units 260A, 260B. In addition, the second control unit 280A controls the attitude of the flaps 250A, 250B equipped in the indoor units 260A, 260B so that the air blown out by the indoor unit 260A and the indoor unit 260B is directed toward the air intake 51.

[0091] For this reason, the air purifying device 100 and the indoor fans 265A, 265B are driven, and the attitudes of the flaps 250A, 250B provided in the indoor units 260A, 260B are controlled so that the air blown out by the indoor units 260A, 260B is directed toward the air intake 51. For this reason, the air in the room 50 can be efficiently sent to the air purifying device 100, and the air in the room 50 can be purified by the air purifying device 100.

[0092] Furthermore, indoor units 260A, 260B of air conditioners 200A, 200B are equipped with second air purification units 269A, 269B. When executing the air purification mode, second control unit 280A drives second air purification units 269A, 269B equipped in indoor units 260A, 260B.

[0093] Therefore, the second air purification sections 269A, 269B of the indoor units 260A, 260B are also driven in addition to the air purification device 100. Therefore, the air in the room 50 can be purified even more effectively.

[0094] Furthermore, when the operating states of the indoor units 260A, 260B are thermo-off operations, the second control section 280A increases the volume of air blown out from the indoor units 260A, 260B. When the operating state of the indoor units 260A, 260B is the thermo-off operation, the driving of the outdoor unit fans 292A, 292B of the air conditioners 200A, 200B stops, and the air circulation in the room 50 stagnates.

[0095] Therefore, by increasing the volume of air blown out from the indoor units 260A, 260B, it is possible to increase the volume of air sent to the air purification device 100. This makes it possible to purify the air in the room more efficiently.

[0096] The air purification device 100 is a device that purifies the air with water containing a disinfecting substance, and the second air purification units 269A, 269B equipped in the air conditioners 200A, 200B are devices that release liquid particles containing ions by discharge and purify the air with the liquid particles. When the operating state of the indoor units 260A, 260B is heating operation or thermo-off operation, the second control unit 280A drives the air purifying device 100 and the second air purifying units 269A, 269B provided in the indoor units 260A, 260B. In addition, when the operating state of the indoor units 260A, 260B is cooling operation, the second control unit 280A drives the second air purifying units 269A, 269B provided in the indoor units 260A, 260B.

[0097] The air purifying device 100 is a device that purifies air using water containing a sterilizing substance, and therefore increases the humidity of the air in the room. Therefore, during cooling operation, the second air purifying units 269A, 269B provided in the indoor units 260A, 260B are driven to cool the room 50 while suppressing an increase in humidity in the room 50, and further purify the air in the room.

[0098] (Other embodiments) As described above, the above-mentioned embodiment has been described as an example disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to an embodiment in which modifications, substitutions, additions, omissions, etc. are made. In addition, it is also possible to combine the components described in the above-mentioned embodiment to create a new embodiment.

[0099] For example, in the above-described embodiment, a case has been described in which both the indoor fan 265A of the indoor unit 260A and the indoor fan 265B of the indoor unit 260B are driven when the air purification mode is executed. As another example, a preset one of the indoor fan 265A or 265B of the indoor unit 260A and the indoor fan 265B of the indoor unit 260B may be driven. For example, of the air conditioning apparatuses 200A and 200B, the indoor fan 265A provided in the indoor unit 260A of the air conditioning apparatus 200A arranged near the intake port 51 may be set as the preset indoor unit, and the indoor fan 265A provided in this indoor unit 260A may be driven.

[0100] In addition, in the explanation of the flowcharts shown in Figures 7 and 8, the second control unit 280A compared the CO2 concentration measured by the CO2 sensor 201A with a threshold value, and if the CO2 concentration is equal to or greater than the threshold value, performed posture control of both the flap 250A of the indoor unit 260A and the flap 250B of the indoor unit 260B.

[0101] As another operation, the second control unit 280A may be configured to acquire the CO2 concentration measured by the CO2 sensor 201A and the CO2 concentration measured by the CO2 sensor 201B. The second control unit 280A compares the acquired CO2 concentrations with a threshold value, and executes posture control of the flaps 250A and 250B when the CO2 concentration is equal to or greater than the threshold value. For example, the second control unit 280A executes only posture control of the flap 250A of the indoor unit 260A when the CO2 concentration measured by the CO2 sensor 201A is equal to or greater than the threshold value. Also, the second control unit 280A executes only posture control of the flap 250B of the indoor unit 260B when the CO2 concentration measured by the CO2 sensor 201B is equal to or greater than the threshold value. Furthermore, when the CO2 concentration measured by the CO2 sensor 201A is equal to or greater than a threshold value and the CO2 concentration measured by the CO2 sensor 201B is equal to or greater than a threshold value, the second control unit 280A performs posture control of the flap 250A of the indoor unit 260A and posture control of the flap 250B of the indoor unit 260B.

[0102] Furthermore, in the above-described embodiment, a configuration has been described in which the CO2 sensor 201A is externally connected to the air conditioning apparatus 200A, and the CO2 sensor 201B is externally connected to the air conditioning apparatus 200B. As another embodiment, the air conditioning apparatus 200A may be configured to include the CO2 sensor 201A in, for example, the indoor unit 260A, and the air conditioning apparatus 200B may be configured to include the CO2 sensor 201B in, for example, the indoor unit 260B. In addition, in the above-described embodiment, a configuration has been described in which one CO2 sensor 201 is connected to each of the multiple air conditioning devices 200, but the configuration may also be such that the CO2 sensor 201 is connected to only one of the air conditioning devices 200A and 200B.

[0103] In the above-described embodiment, a case has been described in which a CO2 sensor is used as the sensor, but a sensor other than a CO2 sensor may be used to measure the pollution level of the air in the room 50. For example, a PM2.5 sensor, a bacteria sensor, an allergen sensor, a pollen sensor, a dust sensor, or the like may be used as the sensor.

[0104] Furthermore, in the above-described embodiment, the air purifying device 100 is installed in the attic 70, but the air purifying device 100 may be configured to be placed on the floor of the room 50. In this case, the second control unit 280A controls the attitude of the flaps 250A, 250B of the indoor units 260A, 260B so that the air blown out by the indoor units 260A, 260B is directed toward the air purifying device 100 installed on the floor.

[0105] 7 and 8, a case has been described in which the attitude of the flap 250B of the indoor unit 260B is controlled to the attitude F1 by controlling the attitude of the preset flap 251B, and the attitudes of the flaps 252B, 253B, and 254B other than the preset flap 251B are controlled to the attitude F0. In addition, the attitude of the flap 253B that is closest to the exhaust port 53 and from which the air blown out from the air outlet 243B faces the exhaust port 53 may be controlled to the attitude F1. By controlling the attitude of the flap 253B to the attitude F1, the air blown out from the air outlet 243B faces the exhaust port 53. Therefore, the purified air exhausted from the exhaust port 53 can be efficiently circulated in the room 50.

[0106] (Additional Note) The above description of the embodiments discloses the following techniques.

[0107] (Technology 1) A plurality of indoor units of an air conditioner are installed in a room to be air-conditioned; a first air purification device that purifies air in the room that is drawn in through an air intake port and exhausts the purified air into the room through an air exhaust port; When executing an air purification mode for purifying the indoor air, Driving the first air purifying device and an indoor fan provided in a preset indoor unit, A control device that controls the attitude of a flap provided in the preset indoor unit so that air blown out from the indoor unit is directed toward the air intake port; An air purification system comprising:

[0108] According to this configuration, the first air purifying device and the indoor fan are driven to control the preset position of the flap provided in the indoor unit so that the air blown out from the indoor unit is directed toward the air intake port. This allows the air in the room to be sent to the first air purifying device and purified by the first air purifying device. This allows the air in the room to be purified efficiently.

[0109] (Technology 2) Each of the indoor units of the plurality of air conditioners is equipped with a second air purification device, The control device includes: When the air purification mode is executed, the second air purification device provided in the preset indoor unit is driven. 2. The air purification system according to claim 1.

[0110] According to this configuration, when the air purification mode is executed, in addition to the first air purification device, the second air purification device provided in the indoor unit is also driven, thereby making it possible to purify the air in the room even more effectively.

[0111] (Technology 3) The control device includes: When the preset operating state of the indoor unit is a thermo-off operation, increasing the volume of air blown out from the indoor unit. 3. The air purification system according to claim 1 or 2.

[0112] According to this configuration, when the operating state of the indoor unit is the thermo-off operation, the volume of air blown out from the indoor unit is increased. When the indoor unit is in thermo-off operation, the outdoor unit fan of the air conditioner stops driving, and indoor air circulation is stagnant. Therefore, by increasing the volume of air blown out from the indoor unit, the volume of air sent to the first air purifier can be increased. This allows the indoor air to be purified more efficiently.

[0113] (Technology 4) The first air purification device is a device that purifies the air with water containing a sterilizing substance, the second air purification device is a device that releases liquid particles containing ions by discharging and purifies the air with the liquid particles; The control device includes: When the operating state of the preset indoor unit is heating operation or thermo-off operation, driving the first air purifying device and the second air purifying device provided in the preset indoor unit; When the operating state of the preset indoor unit is a cooling operation, driving the second air purification device provided in the preset indoor unit. 3. The air purification system of claim 2. 3. The air purification system according to claim 2.

[0114] According to this configuration, when the operating state of the indoor unit is heating operation or thermo-off operation, the first air purifying device and the second air purifying device of the indoor unit are driven, and when the operating state of the indoor unit is cooling operation, the second air purifying device provided in the indoor unit is driven. The first air purifier purifies the air with water containing a sterilizing substance, which increases the humidity of the air in the room. Therefore, by driving the second air purifier provided in the indoor unit during cooling operation, the room can be cooled while suppressing the increase in humidity in the room, and the air in the room can be purified.

[0115] (Technology 5) A plurality of indoor units of an air conditioner are installed in a room to be air-conditioned; In an air purification system including a first air purification device that purifies the air in the room that is drawn in from an air intake port and exhausts the purified air into the room from an exhaust port, and a control device, a processor mounted on the control device is configured to: When executing an air purification mode for purifying the indoor air, Driving the first air purifying device and an indoor fan provided in a preset indoor unit, A program for controlling the attitude of a flap provided in the preset indoor unit so that air blown out from the indoor unit is directed toward the air intake port.

[0116] According to this configuration, the first air purifying device and the indoor fan are driven to control the preset position of the flap provided in the indoor unit so that the air blown out from the indoor unit is directed toward the air intake port. This allows the air in the room to be sent to the first air purifying device and purified by the first air purifying device. This allows the air in the room to be purified efficiently.

[0117] (Technology 6) A plurality of indoor units of an air conditioner are installed in a room to be air-conditioned; An air purification method for an air purification system including a first air purification device that purifies air in the room sucked in through an air intake port and exhausts the purified air into the room through an exhaust port, and a control device, The control device, When executing an air purification mode for purifying the indoor air, Driving the first air purifying device and an indoor fan provided in a preset indoor unit; An air purification method for an air purification system, comprising controlling the attitude of a flap provided in the preset indoor unit so that air blown out from the indoor unit is directed toward the air intake port.

[0118] According to this configuration, the first air purifying device and the indoor fan are driven to control the preset position of the flap provided in the indoor unit so that the air blown out from the indoor unit is directed toward the air intake port. This allows the air in the room to be sent to the first air purifying device and purified by the first air purifying device. This allows the air in the room to be purified efficiently.

[0119] As described above, the above-mentioned embodiment has been described as an example disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to an embodiment in which modifications, substitutions, additions, omissions, etc. are made. In addition, it is also possible to combine the components described in the above-mentioned embodiment to create a new embodiment.

[0120] The step units of the operations shown in Figures 7 and 8 are divided according to the main processing contents in order to make the operations easier to understand, and the manner in which the processing units are divided or the names of the processing units do not limit the operations. The operations may be divided into more step units according to the processing contents. Furthermore, one step unit may be divided so as to include more processing. Furthermore, the order of the steps may be appropriately changed within a range that does not interfere with the purpose of this disclosure.

[0121] Furthermore, since the above-described embodiments are intended to illustrate the technology in the present disclosure, various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims or their equivalents. [Industrial Applicability]

[0122] As described above, the air purification system, the program, and the control method for the air purification system according to the present invention can be used for efficiently purifying indoor air. [Explanation of symbols]

[0123] 1. Air Purification System 10 Network 30 Remote Control 50 Indoor 51 Air Intake 53 Exhaust port 60 Ceiling surface 70 Attic 71 Intake duct 73 Exhaust Duct 100 Air Purifier 110 1st wireless communication I / F 130 First Air Purification Section 150 First Control Section 151 1st memory section 153 First Processor 200, 200A, 200B Air conditioning equipment 201A, 201B CO2 Sensor 220A, 220B Casing 230A Decorative Panel 231A Inlet 233A Filter 240A, 241A, 242A, 243A, 244A outlet 240B, 241B, 242B, 243B, 244B outlet 250A, 251A, 252A, 253A, 254A Flap 250B, 251B, 252B, 253B, 254B Flap 255 Near end 257 Distal end 260A, 260B indoor unit 261A 2nd wireless communication I / F 263A Remote control receiver 265A, 265B Indoor Fan 267A Indoor heat exchanger 269A, 269B Second air purification section 270A Second control section 271A Discharge device 280A, 280B Second control section 281A 2nd memory section 283A Second Processor 290A outdoor unit 291A Outdoor heat exchanger 292A, 292B Outdoor unit fan 293A Compressor 294A Expansion Valve 295A Four-way Valve F0~F5 Posture

Claims

1. A plurality of indoor units of an air conditioner are installed in a room to be air-conditioned; a first air purification device that purifies air in the room that is drawn in through an air intake port and exhausts the purified air into the room through an air exhaust port; When executing an air purification mode for purifying the indoor air, Driving the first air purifying device and an indoor fan provided in a preset indoor unit, A control device that controls the attitude of a flap provided in the preset indoor unit so that air blown out from the indoor unit is directed toward the air intake port; An air purification system comprising:

2. Each of the indoor units of the plurality of air conditioners is equipped with a second air purification device, The control device includes: When the air purification mode is executed, the second air purification device provided in the preset indoor unit is driven.

2. The air purification system of claim 1.

3. The control device includes: When the preset operating state of the indoor unit is a thermo-off operation, increasing the volume of air blown out from the indoor unit.

2. The air purification system of claim 1.

4. the first air purification device is a device that purifies the air with water containing a sterilizing substance, the second air purification device is a device that releases liquid fine particles containing ions by discharge and purifies the air with the liquid fine particles, The control device includes: When the operating state of the preset indoor unit is a heating operation or a thermo-off operation, the first air purifying device and the second air purifying device provided in the preset indoor unit are driven; When the operating state of the preset indoor unit is a cooling operation, driving the second air purification device provided in the preset indoor unit.

3. The air purification system of claim 2.

5. A plurality of indoor units of an air conditioner are installed in a room to be air-conditioned; In an air purification system including a first air purification device that purifies air in the room that is drawn in through an air intake port and exhausts the purified air into the room through an air exhaust port, and a control device, the first air purification device is configured to: When executing an air purification mode for purifying the indoor air, Driving the first air purifying device and an indoor fan provided in a preset indoor unit, A program for controlling the attitude of a flap provided in the preset indoor unit so that air blown out from the indoor unit is directed toward the air intake port.

6. A plurality of indoor units of an air conditioner are installed in a room to be air-conditioned; A control method for an air purification system including a first air purification device that purifies air in the room taken in through an air intake port and exhausts the purified air into the room through an exhaust port, and a control device, comprising: The control device, When executing an air purification mode for purifying the indoor air, Driving the first air purifying device and an indoor fan provided in a preset indoor unit; A control method for an air purification system, comprising: controlling the attitude of a flap provided in the preset indoor unit so that air blown out from the indoor unit is directed toward the air intake port.

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