Space purification device

Abstract

To provide a technique capable of facilitating adjustment of an amount of hypochlorous acid discharged in the air throughout a year.SOLUTION: A space purification device 40 comprises: an atomizing section 41 which pumps up stored hypochlorous acid solution, performs centrifugal atomization of the same and adds the atomized hypochlorous acid solution to air introduced from a habitable room; and a control section which controls rotational action when centrifugally atomizing the hypochlorous acid with the atomizing section 41. The control section has a first control mode to control a rotation speed of the atomizing section 41 on the basis of a demand humidification amount in the habitable room and a second control mode to control the rotation speed of the atomizing section 41 on the basis of a demand hypochlorous acid amount in the habitable room. The control section executes: the first control mode when operation mode information transmitted from an air-conditioning device adjusting a temperature of the air introduced from the habitable room to the atomizing section 41 indicates warming operation; and the second control mode when the operation mode information indicates cooling operation.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a space purification technology, and particularly to a space purification device that sprays water containing hypochlorous acid water.

Background Art

[0002] A space purification device sprays fine water particles such as a chemical agent, for example, hypochlorous acid water, in order to sterilize or deodorize a target area. For example, the liquid atomization chamber of the space purification device discharges water droplets from the hypochlorous acid aqueous solution stored in the water storage section. The water droplets are discharged from the outlet through the air duct to the target area by the ventilation by the air blowing section (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in a conventional space purification device, during a period when the amount of humidification required in the living space (humidification requirement) is small (for example, the intermediate period and summer in Japan), the amount of the purification component (hypochlorous acid) released into the living space decreases, so that it becomes difficult to release the purification component into the indoor space. That is, in the conventional space purification device, when controlling the supply of hypochlorous acid to the space only by the amount of humidification, there is a problem that it is not easy to increase the amount of the purification component released into the indoor space (in the air) during a period when the humidification requirement is small.

[0005] Therefore, the present invention solves the above-described conventional problems, and an object thereof is to provide a technology that can easily adjust the amount of hypochlorous acid released into the air throughout the year.

Means for Solving the Problems

[0006] In order to solve the above problems, the space purification device according to the present invention pumps up the stored hypochlorous acid water and has a miniaturization unit that adds hypochlorous acid to the air introduced from the living space by centrifugal crushing, and a control unit that controls the rotation operation during centrifugal crushing in the miniaturization unit. The control unit controls the rotation speed of the miniaturization unit based on the humidification requirement amount for the living space and releases air containing hypochlorous acid into the living room space in a first control mode, and controls the rotation speed of the miniaturization unit based on the hypochlorous acid requirement amount for the living space and releases air containing hypochlorous acid into the living room space in a second control mode. When the operation mode information transmitted from the air conditioner that adjusts the temperature of the air introduced from the living space to the miniaturization unit indicates a heating operation, the first control mode is executed, and when the operation mode information indicates a cooling operation, the second control mode is executed.

Advantages of the Invention

[0007] According to the present invention, it is possible to provide a technique that can easily adjust the amount of hypochlorous acid released into the air throughout the year.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0009] The space purification device according to the present invention includes a miniaturization unit that adds hypochlorous acid to the air introduced from the living space by pumping and centrifugally crushing the stored hypochlorous acid water, and a control unit that controls the rotational operation during centrifugal crushing in the miniaturization unit. The control unit has a first control mode for controlling the rotational speed of the miniaturization unit based on the humidification requirement amount for the living space, and a second control mode for controlling the rotational speed of the miniaturization unit based on the hypochlorous acid requirement amount for the living space. When the operation mode information transmitted from the air conditioner that adjusts the temperature of the air introduced from the living space to the miniaturization unit indicates a heating operation, the first control mode is executed, and when the operation mode information indicates a cooling operation, the second control mode is executed.

[0010] According to such a configuration, when the air conditioner is performing a heating operation, that is, when the relative humidity of the living space is low and it is a time when the humidification amount can be increased (for example, winter in Japan), the first control mode is executed. On the other hand, when the air conditioner is performing a cooling operation, that is, when the humidification requirement amount for the living space is small (for example, summer in Japan), the second control mode is executed. Thereby, in winter in Japan, since the miniaturization unit executes a rotational operation based on the humidification requirement amount, the amount of hypochlorous acid released into the living space can be easily adjusted according to the humidification requirement amount. On the other hand, in summer in Japan, since the miniaturization unit executes a rotational operation based on the hypochlorous acid requirement amount, the amount of hypochlorous acid released into the living space can be easily adjusted regardless of the humidification requirement amount. That is, in the space purification device, by combining the first control mode and the second control mode to execute the humidification and purification operation, it is possible to easily adjust the amount of hypochlorous acid released into the air throughout the year.

[0011] In addition, in the space purification device according to the present invention, when the operation mode information of the air conditioner indicates a heating operation and the temperature difference between the set temperature of the living space and the outside air temperature outside the living space is equal to or lower than the reference temperature, the control unit may execute the second control mode. By doing so, in a situation where the heating operation of the air conditioner substantially stops, the atomization unit is made to execute a rotation operation based on the hypochlorous acid requirement amount, so that the amount of hypochlorous acid released into the living space can be adjusted without causing a situation where a predetermined amount of hypochlorous acid is difficult to be released into the living space.

[0012] In addition, in the space purification device according to the present invention, when the operation mode information indicates the stop of the operation of the air conditioner, the control unit may execute the second control mode. By doing so, during a period when air conditioning of the living space is not required (for example, an intermediate period that is a transition period between summer and winter in Japan), the atomization unit is made to execute a rotation operation based on the hypochlorous acid requirement amount, so that the amount of hypochlorous acid released into the living space can be adjusted without causing a situation where a predetermined amount of hypochlorous acid is difficult to be released into the living space.

[0013] In addition, in the space purification device according to the present invention, when the humidity of the living space becomes equal to or higher than the reference humidity during the execution of the rotation operation in the second control mode, the control unit may switch to the rotation operation in the first control mode. Thereby, the amount of humidification accompanying the release of hypochlorous acid into the living room space can be adjusted so that the living space does not become overhumidified.

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the following embodiments are an example of embodying the present invention and do not limit the technical scope of the present invention.

[0015] (Embodiment 1) First, referring to FIG. 1, an air conditioning system 20 including a space purification system 18 interlocked with a space purification device 40 according to Embodiment 1 of the present invention will be described. FIG. 1 is a connection schematic diagram of the air conditioning system 20 including the space purification system 18 interlocked with the space purification device 40 according to Embodiment 1 of the present invention.

[0016] As shown in FIG. 1, the air conditioning system 20 includes a heat exchange fan 4, a plurality of room dampers 5 (room dampers 5a, 5b, 5c, 5d), a plurality of circulation ports 6 (circulation ports 6a, 6b, 6c, 6d), a plurality of room exhaust ports 7 (room exhaust ports 7a, 7b, 7c, 7d), a plurality of room supply ports 8 (room supply ports 8a, 8b, 8c, 8d), an outdoor temperature sensor 16, a space purification system 18, an operation panel 50 (corresponding to an air conditioning controller), and a control unit 60 (see FIG. 3). Further, the space purification system 18 includes a plurality of transport fans 3 (transport fans 3a, 3b), an indoor temperature and humidity sensor 12, an air conditioner 13, a suction temperature and humidity sensor 14, a dust collection filter 17, and a space purification device 40.

[0017] The air conditioning system 20 is installed in a general house 1 which is an example of a building. The general house 1 has a plurality (four in this embodiment) of rooms 2 (rooms 2a, 2b, 2c, 2d) and at least one air conditioning room 18a independent of the rooms 2. Here, the general house 1 (residence) is a dwelling provided as a place for residents to conduct private lives. As a general configuration, the rooms 2 generally include a living room, a dining room, a bedroom, a private room, a children's room, etc. Further, the rooms 2 provided by the air conditioning system 20 may include a toilet, a bathroom, a washroom, a dressing room, etc.

[0018] In the room 2a, a circulation port 6a, a room exhaust port 7a, a room supply port 8a, and an operation panel 50 are installed. In the room 2b, a circulation port 6b, a room exhaust port 7b, and a room supply port 8b are installed. In the room 2c, a circulation port 6c, a room exhaust port 7c, and a room supply port 8c are installed. In the room 2d, a circulation port 6d, a room exhaust port 7d, and a room supply port 8d are installed.

[0019] In the air-conditioned room 18a, a space purification system 18 is installed in the space. The space purification system 18 includes a conveying fan 3 (conveying fans 3a, 3b), damper for living rooms 5 (dampers for living rooms 5a, 5b, 5c, 5d), indoor temperature and humidity sensor 12, air conditioner 13, suction temperature and humidity sensor 14, a space purification device 40, and a dust collection filter 17. More specifically, the space purification system 18 is arranged in order from the upstream side of the air flow path of the air flowing in the air-conditioned room 18a as the indoor temperature and humidity sensor 12, air conditioner 13, dust collection filter 17, suction temperature and humidity sensor 14, space purification device 40, conveying fan 3, and damper for living rooms 5.

[0020] The air-conditioned room 18a means a space with a certain size where the indoor temperature and humidity sensor 12, air conditioner 13, dust collection filter 17, suction temperature and humidity sensor 14, space purification device 40, conveying fan 3, etc. that make up the space purification system 18 can be arranged and the air supplied to each living room 2 can be controlled. It does not mean a living space and basically does not mean a room where residents stay.

[0021] Air is introduced into the air-conditioned room 18a from the outside. And in the air-conditioned room 18a, the air (indoor air) conveyed from each living room 2 through the circulation port 6 is mixed with the outside air (outdoor air) taken in and heat-exchanged by the heat exchange fan 4. The air in the air-conditioned room 18a is controlled by the space purification system 18 (air conditioner 13 and space purification device 40) provided in the air-conditioned room 18a for temperature adjustment and the addition of an air purification component (hypochlorous acid) accompanied by humidity adjustment, and the air to be conveyed to each living room 2 is generated. The air processed by the space purification system 18 is conveyed to each living room 2 as the supply air flow 10 by the conveying fan 3.

[0022] The air in each living room 2 is conveyed to the air-conditioning chamber 18a through the circulation port 6 as shown by the circulation flow 9. In addition, as shown by the intake flow 11, after being heat-exchanged through the heat-exchange fan 4 by the living room exhaust port 7, it is discharged outdoors. The air-conditioning system 20 performs ventilation of the first type of ventilation method by discharging the indoor air (indoor air) from each living room 2 by the heat-exchange fan 4 and taking in the outdoor air (outdoor air) indoors. The ventilation air volume of the heat-exchange fan 4 is configured to be settable in multiple stages, and the ventilation air volume is set to satisfy the required ventilation volume defined by laws and regulations.

[0023] The heat-exchange fan 4 is configured to have an air supply fan (not shown) and an exhaust fan (not shown) inside, and by operating each fan, it ventilates while performing heat exchange between the indoor air (indoor air) and the outdoor air (outdoor air). At this time, the heat-exchange fan 4 conveys the heat-exchanged outdoor air to the air-conditioning chamber 18a (space purification system 18).

[0024] The conveying fan 3 is provided on the wall surface (the wall surface on the bottom side) of the air-conditioning chamber 18a. Then, the air processed by the space purification system 18 is conveyed from the living room air supply port 8 to the living room 2 through the conveying duct by the conveying fan 3. More specifically, the air processed by the space purification system 18 is conveyed to the living rooms 2a and 2b located on the first floor of the general house 1 by the conveying fan 3a, respectively, and is conveyed to the living rooms 2c and 2d located on the second floor of the general house 1 by the conveying fan 3b, respectively. Note that the conveying ducts connected to the living room air supply port 8 of each living room 2 are provided independently of each other.

[0025] A part of the air in each living room 2 (living rooms 2a to 2d) is conveyed to the air-conditioning chamber 18a through the corresponding circulation port 6 (circulation ports 6a to 6d) via the circulation duct. Note that the circulation ducts connecting the air-conditioning chamber 18a and each living room 2 may be provided independently of each other, but a plurality of branch ducts, which are part of the circulation duct, may be merged midway and integrated into one circulation duct, and then connected to the air-conditioning chamber 18a.

[0026] When the room damper 5 conveys air from the conveying fan 3 to each room 2, the air volume sent to each room 2 is adjusted by adjusting the opening degree of the room damper 5. More specifically, the room dampers 5a and 5b adjust the air volumes sent to the rooms 2a and 2b located on the first floor, respectively. Also, the room dampers 5c and 5d adjust the air volumes sent to the rooms 2c and 2d located on the second floor, respectively.

[0027] As described above, each room circulation port 6 (circulation ports 6a to 6d) is an opening for conveying indoor air from each room 2 (rooms 2a to 2d) to the air-conditioning room 18a. Each room circulation port 6 sucks in the air of each room 2 as the circulation flow 9.

[0028] As described above, each room exhaust port 7 (room exhaust ports 7a to 7d) is an opening for conveying indoor air from each room 2 (rooms 2a to 2d) to the heat exchange fan 4. Each room exhaust port 7 sucks in the air of each room 2 as the intake flow 11.

[0029] As described above, each room air supply port 8 (room air supply ports 8a to 8d) is an opening for conveying the air in the air-conditioning room 18a from the air-conditioning room 18a to each room 2 (rooms 2a to 2d). Each room air supply port 8 blows out the air from the air-conditioning room 18a as the air supply flow 10.

[0030] The indoor temperature and humidity sensor 12 is installed on the upstream side of the space purification system 18, sucks in air from the room 2 (rooms 2a to 2d), and acquires the temperature and humidity (relative humidity) of the air flowing into the air-conditioning room 18a (space purification system 18) as the room temperature and room humidity, respectively, and transmits them to the control unit 60.

[0031] The air conditioner 13 corresponds to an air conditioner (air conditioner), and controls the air conditioning of the space purification system 18. The air conditioner 13 cools or heats the air in the air conditioning chamber 18a so that the temperature of the air in the air conditioning chamber 18a becomes the set temperature (air conditioning chamber target temperature). Here, the set temperature is set to a temperature based on the result of calculating the necessary heat amount from the temperature difference between the target temperature (room target temperature) set by the user and the room temperature detected by the indoor temperature and humidity sensor 12. In the present embodiment, the set temperature is set to at least a temperature higher than the target temperature in order to warm the temperature of the air in each living room 2 to the target temperature more quickly.

[0032] The dust collecting filter 17 is a dust collecting filter that collects particles floating in the air introduced into the air conditioning chamber 18a. The dust collecting filter 17 makes the air supplied indoors by the transport fan 3 clean air by collecting the particles contained in the air transported into the air conditioning chamber 18a through the circulation port 6. Here, the dust collecting filter 17 is installed so as to block the air flow path in the region between the air conditioner 13 and the space purification device 40.

[0033] The space purification device 40 is located on the downstream side of the air conditioner 13 (and the dust collecting filter 17) in the air conditioning chamber 18a, and when the humidity of the air in each living room 2 (room humidity) is lower than the target humidity (room target humidity) set by the user, it humidifies the air in the air conditioning chamber 18a so that the humidity becomes the target humidity. Further, the space purification device 40 adds hypochlorous acid as an air purification component to the flowing air during humidification. Note that the humidity dealt with here is indicated by relative humidity, but it may be dealt with as absolute humidity by a predetermined conversion process. In this case, it is preferable to deal with the entire handling in the air conditioning system 20 including the humidity of the living room 2 as absolute humidity. Details of the space purification device 40 will be described later.

[0034] The intake temperature and humidity sensor 14 is a sensor that acquires the temperature and humidity (relative humidity) of the air temperature-controlled by the air conditioner 13 in the space purification system 18 and transmits the acquired data to the control unit 60. More specifically, the intake temperature and humidity sensor 14 is installed on the downstream side of the dust collection filter 17 in the space purification system 18, acquires the temperature and humidity of the air sucked into the space purification device 40, and transmits the acquired data to the control unit 60.

[0035] The outdoor temperature sensor 16 is installed at a location where the temperature of the outside air of the general house 1 can be detected (for example, the outside air inlet of the heat exchange fan 4, the outdoor unit of the air conditioner 13, the outer wall of the general house 1, etc.), acquires the temperature of the outside air, and transmits the acquired data to the control unit 60.

[0036] The operation panel 50 is a terminal for inputting user input information related to the air conditioning system 20 (space purification system 18) (for example, air volume, target temperature, target humidity, presence or absence of addition of hypochlorous acid, target supply amount level of hypochlorous acid, heat exchange level of the heat exchange fan 4, etc.), and is communicably connected to the control unit 60 wirelessly or by wire. Note that the target supply amount level of hypochlorous acid corresponds to the "required amount of hypochlorous acid" in the claims.

[0037] The control unit 60 is a controller that controls the entire air conditioning system 20. The control unit 60 is communicably connected to each of the heat exchange fan 4, the transport fan 3, the room damper 5, the indoor temperature and humidity sensor 12, the air conditioner 13, the intake temperature and humidity sensor 14, the outdoor temperature sensor 16, the space purification device 40, and the operation panel 50 by wireless communication.

[0038] In addition, the control unit 60 controls the air conditioner 13, the space purification device 40, the air volume of the transport fan 3, and the opening degree of the room damper 5 according to the temperature and humidity (room temperature and room humidity of the living room 2) acquired by the indoor temperature and humidity sensor 12, the set temperature and humidity (room set temperature and room set humidity) set in the living room 2, the temperature and humidity of the air in the air-conditioned room 18a (temperature and humidity of the air sucked into the space purification device 40) acquired from the intake temperature and humidity sensor 14, and the temperature (temperature of the outside air of the general house 1) acquired from the outdoor temperature sensor 16. Note that the air volume of the transport fan 3 may be individually controlled for each fan.

[0039] As a result, the air conditioned by the space purification system 18 is conveyed to each living room 2 at the air volume set for each conveying fan 3 and each damper 5 for living rooms. Therefore, the room temperature and room humidity of each living room 2 are controlled so as to become the room target temperature and room target humidity. Also, the supply amount of hypochlorous acid to each living room 2 is controlled so as to become the target supply amount level.

[0040] Next, with reference to FIG. 2, the outline of the configuration of the space purification device 40 will be described. FIG. 2 is a schematic diagram showing the configuration of the space purification device 40. In FIG. 2, the configuration of the space purification device 40 is shown by functional blocks, but actually, the space purification device 40 is housed in a single housing, and pipes and the like are connected to the housing.

[0041] The space purification device 40 is located on the downstream side of the air conditioner 13 in the air conditioning room 18a, and is a device for humidifying the air in the air conditioning room 18a by centrifugal water atomization and adding hypochlorous acid as an air purification component.

[0042] Specifically, the space purification device 40 includes a miniaturization unit 41, a hypochlorous acid water generation unit 30, a hypochlorous acid water supply unit 38, and a water supply unit 48. The miniaturization unit 41 includes a mixing tank 42, a centrifugal crushing unit 43, a water level sensor 44, and a purification air duct 49.

[0043] The miniaturization unit 41 is a unit for humidifying the air flowing through the purification air duct 49. When humidifying, the miniaturization unit 41 includes hypochlorous acid as an air purification component together with the atomized water with respect to the flowing air. The miniaturization unit 41 can also be called a liquid atomization chamber or an air purification unit. More specifically, the miniaturization unit 41 atomizes the mixed water (hypochlorous acid water diluted by mixing the hypochlorous acid water from the hypochlorous acid water generation unit 30 and the water from the water supply unit 48) stored in the mixing tank 42 by centrifugal crushing and includes it in the air flowing through the purification air duct 49.

[0044] The mixing tank 42 is a tank for storing hypochlorous acid water in the atomization section 41, and can also be said to be a water storage section. In the mixing tank 42, hypochlorous acid water with a predetermined concentration supplied from a hypochlorous acid water supply section 38 described later and water supplied from a water supply section 48 described later are mixed in the tank and stored as mixed water composed of diluted hypochlorous acid water. Although not particularly shown, a drain port for discharging the stored mixed water is provided at the bottom of the mixing tank 42.

[0045] The centrifugal crushing unit 43 rotates a lift pipe 43a using a humidification motor (not shown), sucks up the mixed water (hypochlorous acid water) stored in the mixing tank 42 by centrifugal force, scatters, collides, and crushes it in the surrounding (centrifugal direction), and has a centrifugal crushing type configuration in which hypochlorous acid is included in the air passing through the purification air duct 49 together with moisture.

[0046] The centrifugal crushing unit 43 changes the rotation speed of the humidification motor according to an output signal from the control unit 60 to adjust the humidification capacity (humidification amount). More specifically, the control unit 60 controls the rotation speed of the humidification motor and adjusts the humidification amount based on the user's temperature and humidity settings and the target supply amount level setting of hypochlorous acid input on the operation panel 50, the temperature and humidity measurement values at the suction port of the space purification device 40 by the suction temperature and humidity sensor 14, and the temperature measurement value obtained from the outdoor temperature sensor 16. Note that the humidification amount can also be said to be the addition amount of adding hypochlorous acid to the air flowing through the purification air duct 49.

[0047] The water level sensor 44 detects the water level of the mixed water stored in the mixing tank 42 and outputs it to the control unit 60. More specifically, the water level sensor 44 includes a water level sensor 44a that detects the water level in the full water state of the mixed water stored in the mixing tank 42 and a water level sensor 44b that detects the water level of the mixed water in a state where it has decreased by a specified amount from the full water state.

[0048] Here, the specified amount is set to the amount of hypochlorous acid water that can be generated by one electrolysis in the electrolytic cell 33 of the hypochlorous acid water generation section 30.

[0049] The purification air passage 49 is an air passage for adding hypochlorous acid together with moisture to the air passing through the atomization section 41. The air inlet and outlet (not shown) of the air passing through the purification air passage 49 are provided on the wall surface or the top surface of the atomization section 41. The purification air passage 49 communicates with the air conditioning chamber 18a.

[0050] The atomization section 41 is composed of the above-described members. In the atomization section 41, the air that has been sucked into the interior after passing through the dust collection filter 17 from the air conditioning chamber 18a is added with hypochlorous acid together with moisture by the rotational operation in the centrifugal crushing unit 43 and then blown back into the air conditioning chamber 18a.

[0051] Next, the hypochlorous acid water generation section 30 will be described.

[0052] The hypochlorous acid water generation section 30 includes a brine tank 31, a brine transfer pump 32, an electrolytic cell 33, electrodes 34, and an electrolytic cell supply valve 35.

[0053] The brine tank 31 stores brine (aqueous sodium chloride solution) and supplies the brine to the electrolytic cell 33 via the brine transfer pump 32 in response to an output signal from the control unit 60. The electrolytic cell 33 stores the brine to be electrolyzed supplied from the brine tank 31. Further, tap water is supplied to the electrolytic cell 33 from a water supply pipe 47 (to be described later) via the electrolytic cell supply valve 35 in response to an output signal from the control unit 60, and the supplied tap water and brine are mixed to store brine having a predetermined concentration. The electrodes 34 are disposed in the electrolytic cell 33 and electrolyze the brine by energization in response to an output signal from the control unit 60 to generate hypochlorous acid water having a predetermined concentration.

[0054] That is, the hypochlorous acid water generation unit 30 generates hypochlorous acid water by electrolyzing brine as an electrolyte between a pair of electrodes constituting the electrode 34 in the electrolytic cell 33. Since a general device is used for the hypochlorous acid water generation unit 30, detailed description thereof is omitted. Here, the electrolyte is an electrolyte capable of generating hypochlorous acid water, and there is no particular limitation as long as it contains chloride ions even in a small amount. For example, an aqueous solution in which sodium chloride, calcium chloride, magnesium chloride, or the like is dissolved as a solute can be mentioned. Hydrochloric acid is also acceptable. In the present embodiment, an aqueous chloride solution (brine) obtained by adding sodium chloride to water is used as the electrolyte.

[0055] Next, the hypochlorous acid water supply unit 38 will be described.

[0056] The hypochlorous acid water supply unit 38 supplies hypochlorous acid water from the electrolytic cell 33 of the hypochlorous acid water generation unit 30 to the mixing tank 42 of the miniaturization unit 41 in response to an output signal from the control unit 60. Specifically, the hypochlorous acid water supply unit 38 includes a hypochlorous acid water transfer pump 36 and a water supply pipe 37. The hypochlorous acid water transfer pump 36 sends out the hypochlorous acid water stored in the electrolytic cell 33 to the water supply pipe 37 in response to an output signal from the control unit 60. The water supply pipe 37 is connected between the hypochlorous acid water transfer pump 36 and the mixing tank 42, and sends the hypochlorous acid water from the electrolytic cell 33 toward the mixing tank 42.

[0057] Here, in the hypochlorous acid water supply unit 38, in order to ensure the concentration of the hypochlorous acid water generated and stored in the hypochlorous acid water generation unit 30 (electrolytic cell 33), when supplying the hypochlorous acid water from the electrolytic cell 33 to the mixing tank 42, the total amount of the hypochlorous acid water generated in the electrolytic cell 33 is supplied. Therefore, after supplying the hypochlorous acid water, the electrolytic cell 33 is in an empty state, and it does not start creating hypochlorous acid water from a state where hypochlorous acid water remains in the electrolytic cell 33.

[0058] Next, the water supply unit 48 will be described.

[0059] The water supply unit 48 supplies water (tap water) to the electrolytic cell 33 of the hypochlorous acid water generation unit 30 and supplies water (tap water) to the mixing tank 42 of the atomization unit 41 in response to the output signal from the control unit 60. Specifically, the water supply unit 48 includes an electrolytic cell supply valve 35, a mixing tank supply valve 45, and a water supply pipe 47. The electrolytic cell supply valve 35 controls whether to flow the water supplied from the water supply pipe 47 outside the hypochlorous acid water generation unit 30 through the strainer 46 into the electrolytic cell 33 in response to the output signal from the control unit 60. The mixing tank supply valve 45 controls whether to flow the water supplied from the water supply pipe 47 outside the atomization unit 41 through the strainer 46 into the mixing tank 42 in response to the output signal from the control unit 60. The water supply pipe 47 is connected to the electrolytic cell 33 via the electrolytic cell supply valve 35 and is also connected to the mixing tank 42 via the mixing tank supply valve 45, and sends water toward the electrolytic cell 33 or the mixing tank 42.

[0060] Further, a drain pan (not shown) may be provided in the space purification device 40. The drain pan is disposed in the entire lower region of the atomization unit 41, the hypochlorous acid water generation unit 30, the hypochlorous acid water supply unit 38, and the water supply unit 48, and is a member that receives water or hypochlorous acid water falling from these. At this time, in addition to the drain pan, it is preferable to provide a drain pump that drains the water or hypochlorous acid water in the drain pan to the drain drain when the water level in the drain pan reaches a predetermined value.

[0061] The space purification device 40 is composed of the above members. In the space purification device 40, the water supplied from the water supply unit 48 and the hypochlorous acid water supplied from the hypochlorous acid water generation unit 30 are mixed. The mixed water of hypochlorous acid water and water mixed in this way can also be called hypochlorous acid water. The space purification device 40 sprays the atomized mixed water (hypochlorous acid water) by centrifugally crushing the mixed water stored in the mixing tank 42. The sprayed mixed water (hypochlorous acid water) is discharged into the air-conditioning chamber 18a in a state where the liquid component has evaporated.

[0062] Incidentally, when the space purification device 40 does not add hypochlorous acid, which is an air purification component, according to the user's settings, the mixed water to be centrifugally crushed in the atomization unit 41 may be only water, and the space purification device 40 may operate as a humidifying device for increasing the humidity of the living room 2.

[0063] Next, with reference to FIG. 3, the control unit 60 will be described. FIG. 3 is a control block diagram of the space purification device 40. As the processing operations of the space purification device 40, the control unit 60 controls operations related to the electrolysis process in the hypochlorous acid water generation unit 30 (electrolytic cell 33), operations related to the supply process of hypochlorous acid water to the atomization unit 41 by the hypochlorous acid water supply unit 38 (first supply operation), operations related to the supply process of water to the atomization unit 41 by the water supply unit 48 (second supply operation), and operations related to the humidifying and purifying process in the atomization unit 41, respectively. Note that the control unit 60 includes a computer system having a processor and a memory. Then, by the processor executing a program stored in the memory, the computer system functions as a controller. The program executed by the processor is assumed to be pre-recorded in the memory of the computer system here, but it may be recorded and provided on a non-transitory recording medium such as a memory card, or may be provided through an electric communication line such as the Internet.

[0064] Specifically, as shown in FIG. 3, the control unit 60 includes an input unit 63, a processing unit 64, an output unit 65, a timing unit 61, and a storage unit 62.

[0065] <Operations related to the electrolysis process in the hypochlorous acid water generation unit> As operations related to the electrolysis process in the hypochlorous acid water generation unit 30 (electrolytic cell 33), the control unit 60 executes the following processes.

[0066] As a trigger for the electrolysis process of the electrolytic cell 33, the control unit 60 receives information related to the stop of the operation of the hypochlorous acid water supply unit 38 (hypochlorous acid water transfer pump 36) (operation stop information) and information related to time from the timing unit 61 (time information), and outputs them to the processing unit 64.

[0067] The processing unit 64 identifies control information based on the operation stop information from the hypochlorous acid water supply unit 38, the time information from the timing unit 61, and the setting information from the storage unit 62, and outputs it to the output unit 65. Here, the setting information includes information regarding the start time or end time of hypochlorous acid water generation, information regarding the supply amount of tap water introduced into the electrolytic cell 33, information regarding the input amount of brine in the brine transfer pump 32, information regarding the electrolysis conditions (time, current value, voltage, etc.) at the electrode 34, information regarding the on / off operation of the electrolytic cell supply valve 35 in the water supply unit 48, and information regarding the on / off operation of the hypochlorous acid water transfer pump 36.

[0068] Here, the electrolysis conditions at the electrode 34 can be determined from the amount of tap water in the electrolytic cell 33, the brine concentration, the electrolysis time, and the degree of deterioration of the electrode 34, and are set by creating an algorithm and stored in the storage unit 62.

[0069] Then, based on the received control information, the output unit 65 outputs signals (control signals) to each device (brine transfer pump 32, electrode 34, electrolytic cell supply valve 35, hypochlorous acid water transfer pump 36).

[0070] More specifically, first, the brine transfer pump 32 maintains the stopped state based on the signal from the output unit 65, and the hypochlorous acid water transfer pump 36 maintains the stopped state based on the signal from the output unit 65.

[0071] Then, the electrolytic cell supply valve 35 is opened based on the signal from the output unit 65. As a result, the supply of tap water from the water supply pipe 47 to the electrolytic cell 33 is started. Thereafter, the electrolytic cell supply valve 35 is closed based on the signal from the output unit 65 that has received the water level information (full water) from the water level sensor 44a. As a result, the electrolytic cell 33 is in a state where tap water has been supplied in a set supply amount.

[0072] Next, the brine transfer pump 32 starts operating based on the signal from the output unit 65, transfers a predetermined amount of brine to the electrolytic cell 33, and then stops. As a result, chloride ions of the brine dissolve in the tap water, and the electrolytic cell 33 reaches a state where an aqueous solution (chloride aqueous solution) containing a predetermined amount of chloride ions is generated.

[0073] Then, based on the signal from the output unit 65, the electrode 34 starts electrolyzing the chloride aqueous solution, generates hypochlorous acid water under the set conditions, and then stops. The hypochlorous acid water generated by the electrode 34 has, for example, a hypochlorous acid concentration of 100 ppm to 150 ppm (for example, 120 ppm) and a pH of 7.0 to 8.5 (for example, 8.0).

[0074] In the above manner, the control unit 60 executes an electrolysis process in the electrolytic cell 33 of the hypochlorous acid water generation unit 30, and hypochlorous acid water with a predetermined concentration and amount is generated.

[0075] <Operation regarding the supply process of hypochlorous acid water to the miniaturization unit> As an operation (first supply operation) regarding the supply process of hypochlorous acid water to the miniaturization unit 41, the control unit 60 causes the following process to be executed. Hereinafter, the hypochlorous acid water supplied to the miniaturization unit 41 by the first supply operation is also referred to as "hypochlorous acid water stock solution".

[0076] Based on the information regarding the reduction time required until the mixed water reaches a state where the specified amount decreases, as a trigger for the supply process of hypochlorous acid water to the miniaturization unit 41, the control unit 60 outputs a hypochlorous acid water supply request to the hypochlorous acid water generation unit 30 (hypochlorous acid water supply unit 36).

[0077] Specifically, the processing unit 64 specifies control information based on the information regarding the reduction time and the setting information from the storage unit 62, and outputs it to the output unit 65. Here, the setting information includes information regarding the supply timing of hypochlorous acid water and information regarding the on / off operation of the hypochlorous acid water transfer pump 36.

[0078] Then, the output unit 65 outputs a signal (control signal) to the hypochlorous acid water transfer pump 36 of the hypochlorous acid water supply unit 38 based on the received control information.

[0079] The hypochlorous acid water transfer pump 36 operates based on the signal from the output unit 65. As a result, in the hypochlorous acid water generation unit 30, the supply of the hypochlorous acid water stock solution from the electrolytic cell 33 to the miniaturization unit 41 (mixing tank 42) is started. In order to ensure the concentration of the hypochlorous acid water stored in the electrolytic cell 33, when the hypochlorous acid water stock solution is supplied from the hypochlorous acid water generation unit 30 to the mixing tank 42, the entire amount of the hypochlorous acid water stock solution generated in the electrolytic cell 33 is supplied.

[0080] After that, the hypochlorous acid water transfer pump 36 stops based on the signal from the output unit 65 that has received the information regarding time (required time for supplying the entire amount) from the timing unit 61. As a result, the hypochlorous acid water supply unit 38 supplies the hypochlorous acid water stock solution from the electrolytic cell 33 to the miniaturization unit 41 (mixing tank 42) in a set supply amount.

[0081] As described above, as the first supply operation, the control unit 60 causes the hypochlorous acid water supply unit 38 to execute the supply process of the hypochlorous acid water stock solution from the hypochlorous acid water generation unit 30 (electrolytic cell 33) to the miniaturization unit 41.

[0082] <Operation regarding the supply process of water to the miniaturization unit> As an operation (second supply operation) regarding the supply process of water to the miniaturization unit 41, the control unit 60 executes the following processes.

[0083] Based on the information regarding the reduction time required until the state where the mixed water has decreased by a specified amount, the control unit 60 outputs a water supply request to the water supply unit 48 as a trigger for the supply process of water to the miniaturization unit 41.

[0084] Specifically, the processing unit 64 identifies control information based on the information regarding the reduction time and the setting information from the storage unit 62, and outputs it to the output unit 65. Here, the setting information includes information regarding the water supply timing and information regarding the on / off operation of the mixing tank supply valve 45.

[0085] Then, the output unit 65 outputs a signal (control signal) to the mixing tank supply valve 45 based on the received control information.

[0086] The mixing tank supply valve 45 operates based on the signal from the output unit 65. As a result, in the water supply unit 48, the supply of water from the external water supply pipe to the atomization unit 41 (mixing tank 42) through the water supply pipe 47 is started.

[0087] After that, the mixing tank supply valve 45 stops based on the signal from the output unit 65 that has received the water level information (full water signal) from the water level sensor 44a of the atomization unit 41. As a result, the water supply unit 48 supplies water from the water supply pipe 47 to the atomization unit 41 (mixing tank 42) until the set amount of water is reached.

[0088] As described above, the control unit 60 causes the water supply unit 48 to execute the water supply process from the water supply pipe 47 to the atomization unit 41 as the second supply operation.

[0089] <Operations related to the humidification and purification process in the atomization unit> Next, the operations related to the humidification and purification process in the atomization unit 41 performed by the control unit 60 will be described.

[0090] The input unit 63 receives the user input information from the operation panel 50, the temperature and humidity information of the air in the living room 2 (information regarding temperature and humidity) from the indoor temperature and humidity sensor 12, the temperature and humidity information of the air in the air-conditioned room 18a (information regarding temperature and relative humidity) from the suction temperature and humidity sensor 14, the temperature information of the outside air (information regarding temperature) from the outside temperature sensor 16, and the water level information of the hypochlorous acid water (mixed water) in the mixing tank 42 from the water level sensor 44. The input unit 63 outputs the received respective information to the processing unit 64.

[0091] The timing unit 61 outputs time information regarding the current time to the processing unit 64.

[0092] The storage unit 62 stores the user input information received by the input unit 63, the temperature of the air flowing into the atomization unit 41, and the rotational speed information in the centrifugal crushing unit with respect to the relative humidity (information regarding the rotational speed based on the humidification requirement amount in the first control mode, and the rotational speed based on the hypochlorous acid requirement amount in the second control mode, etc.). The storage unit 62 outputs the stored various information to the processing unit 64 in response to a request from the processing unit 64.

[0093] The processing unit 64 receives various information (user input information, temperature and humidity information, outside air temperature information, additional requirement amount information of the air purification component) from the input unit 63, the time information from the timing unit 61, and various information (rotational speed information) from the storage unit 62. The processing unit 64 uses the received various information to specify control information regarding the humidification and purification operation in the first control mode or the second control mode.

[0094] The first control mode is a mode for controlling the rotational speed of the atomization unit 41 specified based on the humidification requirement amount for the living room 2. The first control mode is mainly executed when the relative humidity of the living room 2 is low and the humidification amount can be increased (for example, in winter in Japan). More specifically, the first control mode is executed when the air conditioner 13 is in the heating operation and the temperature difference between the set temperature of the living room 2 (room set temperature) and the temperature of the outside air acquired from the outside air temperature sensor 16 is greater than the reference temperature. Here, the reference temperature is set to, for example, 6°C. The first control mode is set to a rotational speed in the range of, for example, 600 rpm to 4000 rpm based on the humidity difference between the target humidity stored in the storage unit 62 and the humidity (for example, absolute humidity) of the air in the living room 2 from the indoor temperature and humidity sensor 12.

[0095] In addition, in the present embodiment, the miniaturization unit 41 controls the water stop state and the drainage state of the hypochlorous acid water stored in the mixing tank 42 by the rotation operation of the lift pipe 43a. More specifically, in the miniaturization unit 41, the lift pipe 43a is disposed at a predetermined position directly above the drain port (not shown) of the mixing tank 42. When the humidification purification operation is started and the lift pipe 43a rotates, a vortex (not shown) is generated in the hypochlorous acid water in the mixing tank 42 inside the lift pipe 43a due to the centrifugal force of the rotation. Then, the lift pipe 43a forms a gap (not shown) communicating between the tip opening of the lift pipe 43a and the drain port at the center of the vortex generated by the rotation. As a result, the gap closes the drain port, suppressing the hypochlorous acid water in the mixing tank 42 from flowing into the drain port. That is, in the miniaturization unit 41, during the humidification purification operation (when the lift pipe 43a is rotating), it becomes a water stop state, and the drainage of the hypochlorous acid water in the mixing tank 42 from the drain port can be suppressed. On the other hand, when the rotation of the lift pipe 43a stops, the gap disappears along with the vortex, and the hypochlorous acid water in the mixing tank 42 flows into the drain port. That is, in the miniaturization unit 41, by stopping the humidification purification operation (the rotation operation of the lift pipe 43a), it becomes a drainage state, and the hypochlorous acid water in the mixing tank 42 can be drained from the drain port. Therefore, in the miniaturization unit 41, even when it is determined that humidification purification is not required, the rotation speed of the lift pipe 43a needs to be set to be equal to or higher than the minimum rotation speed (water stop rotation speed) for maintaining the water stop state of the miniaturization unit 41, and the lower limit rotation speed in the first control mode is set to 600 rpm.

[0096] The second control mode is a mode that controls the rotation speed of the atomization unit 41 specified based on the hypochlorous acid required amount for the living room 2. The second control mode is mainly executed during a period when the humidification required amount for the living room 2 is small (for example, the intermediate period and summer in Japan). More specifically, the second control mode is executed when any one of the following three conditions (Condition 1 to Condition 3) is satisfied. Here, the hypochlorous acid required amount is the amount of hypochlorous acid to be supplied to the living room 2, and is set based on, for example, parameters representing "large", "standard", and "small" for the target supply amount level of hypochlorous acid input by the user to the operation panel 50. The second control mode is set to a rotation speed in the range of 600 rpm to 4000 rpm, for example, based on the target supply amount level of hypochlorous acid stored in the storage unit 62.

[0097] Condition 1: The air conditioner 13 is in a stopped state.

[0098] Condition 2: The air conditioner 13 is in a cooling operation.

[0099] Condition 3: The air conditioner 13 is in a heating operation, and the temperature difference between the set temperature of the living room 2 (living room set temperature) and the temperature of the outside air acquired from the outside air temperature sensor 16 is equal to or lower than the reference temperature.

[0100] Note that the second control mode can also be said to be a mode that executes the humidification purification operation at the rotation speed of the atomization unit 41 specified based on the hypochlorous acid required amount, giving priority over the rotation speed of the atomization unit 41 specified based on the humidification required amount, in a situation where the humidification required amount for the living room 2 is small.

[0101] The processing unit 64 will be specifically described.

[0102] The processing unit 64 determines, at regular intervals based on the time information from the timing unit 61, the required humidification amount for Room 2 based on the humidity difference between the target humidity stored in the storage unit 62 and the temperature and humidity information of the air in Room 2 from the indoor temperature and humidity sensor 12. Further, the processing unit 64 determines the required amount of hypochlorous acid for Room 2 based on the target supply amount level of hypochlorous acid stored in the storage unit 62. Then, the processing unit 64 determines control information (humidification control information) regarding the humidification and purification operation based on the determined required humidification amount and hypochlorous acid amount, and the rotation speed information stored in the storage unit 62. And the processing unit 64 outputs a signal regarding the determined control information to the output unit 65. Also, the processing unit 64 determines an operation related to the supply of hypochlorous acid water (first supply operation) and an operation related to the supply of water (second supply operation). And the processing unit 64 outputs a signal regarding the determined control information to the output unit 65. Note that the supply control information includes a signal for the hypochlorous acid water supply request and a signal for the water supply request.

[0103] Then, the output unit 65 outputs each received signal to the atomization unit 41, the hypochlorous acid water supply unit 38, and the water supply unit 48, respectively.

[0104] The hypochlorous acid water supply unit 38 receives a signal from the output unit 65 (the signal for the hypochlorous acid water supply request included in the supply control information), and based on the received signal, executes an operation (first supply operation) regarding the supply process of hypochlorous acid water to the mixing tank 42 of the atomization unit 41 described above at a predetermined supply timing. Also, the water supply unit 48 receives a signal from the output unit 65 (the signal for the water supply request included in the supply control information), and based on the received signal, executes an operation (second supply operation) regarding the supply process of water to the mixing tank 42 of the atomization unit 41 described above at a predetermined supply timing.

[0105] Then, the atomization unit 41 receives the signal from the output unit 65 and controls the rotational operation of the centrifugal crushing unit 43 based on the received signal. More specifically, the atomization unit 41 performs a humidification purification process on the air flowing through the interior (purification air duct 49) by means of a rotational operation set based on the humidification requirement amount in the first control mode or a rotational operation set based on the hypochlorous acid requirement amount set in the second control mode. Then, when the humidification purification process progresses and the mixed water decreases by a specified amount from the full water level state (when the water level information from the water level sensor 44b is acquired), the atomization unit 41 causes the first supply operation or the second supply operation to replenish the decreased specified amount.

[0106] Next, with reference to FIG. 4, the rotational speed control operation of the atomization unit 41 in the control unit 60 of the space purification device 40 will be described. FIG. 4 is a flowchart showing the processing operation in the control unit 60 of the space purification device 40. In the following, the description of the supply processing operation and the drainage processing operation of water or hypochlorous acid water executed during the humidification purification processing operation is omitted.

[0107] First, when the humidification purification process is started, the control unit 60 acquires information regarding the operation mode (operation mode information) from the air conditioner 13 (step S01). The control unit 60 determines whether the air conditioner 13 is operating or stopped based on the acquired operation mode information (step S02). As a result of the determination, when the air conditioner 13 is operating and stopped (Yes in step S02), the control unit 60 determines that the above-described condition 1 is satisfied, and starts the humidification purification operation in the second control mode for the atomization unit 41 (step S09). In the humidification purification operation in the second control mode, the atomization unit 41 is set to a rotational speed (in the range of 600 rpm to 4000 rpm) specified based on the hypochlorous acid requirement amount.

[0108] On the other hand, if, as a result of the determination in step S02, the air conditioner 13 is not in the stopped state, that is, it is in the operating state (No in step S02), the control unit 60 determines whether the air conditioner 13 is in the heating operation based on the acquired operation mode information (step S03). Then, if, as a result of the determination, the air conditioner 13 is not in the heating operation (No in step S03), the control unit 60 identifies that the above-described condition 2 is satisfied, that is, the air conditioner 13 is in the cooling operation state (step S04), and causes the atomization unit 41 to start the humidifying and purifying operation in the second control mode (step S09).

[0109] On the other hand, if, as a result of the determination in step S03, the air conditioner 13 is in the heating operation (Yes in step S03), the control unit 60 identifies that the air conditioner 13 is in the heating operation state (step S05). Then, the control unit 60 calculates the temperature difference between the set temperature of the living room 2 (living room set temperature) input on the operation panel 50 and the outside air temperature detected by the outside air temperature sensor 16 (step S06). The control unit 60 determines whether the temperature difference is greater than the reference temperature based on the acquired temperature difference information (step S07). Then, if, as a result of the determination, the temperature difference is not greater than the reference temperature, that is, the temperature difference is less than or equal to the reference temperature (No in step S07), it is determined that the above-described condition 3 is satisfied, and the control unit 60 causes the atomization unit 41 to start the humidifying and purifying operation in the second control mode (step S09).

[0110] On the other hand, if, as a result of the determination in step S07, the temperature difference is greater than the reference temperature (Yes in step S07), the control unit 60 causes the atomization unit 41 to start the humidifying and purifying operation in the first control mode (step S08). In the humidifying and purifying operation in the first control mode, the atomization unit 41 is set to the rotation speed (in the range of 600 rpm to 4000 rpm) controlled based on the humidification required amount.

[0111] Specifically, in steps S03 to S09, if the air conditioner 13 is in the cooling operation, the humidification and purification operation in the second control mode is executed. On the other hand, when the air conditioner 13 is in the heating operation and the room set temperature is 22°C and the outside air temperature is 15°C, the temperature difference is 7°C. Since the temperature difference of 7°C is larger than the reference temperature (6°C), the humidification and purification operation in the first control mode is executed. In contrast, when the air conditioner 13 is in the heating operation and the room set temperature is 22°C and the outside air temperature is 20°C, the temperature difference is 2°C. Since the temperature difference of 2°C is less than or equal to the reference temperature (6°C), the humidification and purification operation in the second control mode is executed.

[0112] Thereafter, the control unit 60 determines whether or not the time elapsed since the start time of the humidification and purification operation by the atomization unit 41 in step S08 or step S09 has passed a predetermined time (step S10). As a result of the determination, if the predetermined time has not elapsed (No in step S10), the control unit 60 continues the humidification and purification operation by the atomization unit 41 as it is (returns to step S10). On the other hand, if the predetermined time has elapsed (Yes in step S10), the control unit 60 returns to step S01. Here, the predetermined time is an interval time for feedback control of humidification and purification, and is set to, for example, 5 minutes.

[0113] As described above, in the space purification device 40, the operation related to the humidification and purification process by the atomization unit 41 is executed.

[0114] Next, each control (first control mode, second control mode) in the humidification and purification operation of the atomization unit 41 will be described.

[0115] As described above, the first control mode is executed when the relative humidity in the living room 2 is low and it is possible to increase the humidification amount (for example, in winter in Japan). During such a period, the atomization unit 41 can release a predetermined amount of space purification component (hypochlorous acid) into the living room 2 along with the humidification and purification operation (humidification operation). That is, when the release of hypochlorous acid into the living room 2 is required during such a period, by executing a rotation operation (humidification and purification operation according to the first control mode) based on the humidification required amount in the atomization unit 41, the release amount of hypochlorous acid into the living room 2 can be easily adjusted according to the humidification required amount.

[0116] However, in the first control mode, during the intermediate period in Japan (for example, the transition period between summer and winter corresponding to spring or autumn in Japan) and in summer, since the relative humidity of the air in the living room 2 is high, the required amount of humidification to the living room 2 is determined to be small, or it is determined that humidification to the living room 2 is not required. That is, it becomes a situation where it is difficult to release a predetermined amount of hypochlorous acid into the living room 2.

[0117] Therefore, the second control mode is executed when the required amount of humidification to the living room 2 is small (for example, the intermediate period and summer in Japan), that is, in a situation where it is difficult to release a predetermined amount of hypochlorous acid into the living room 2 in the first control mode. In the second control mode, the rotation operation of the atomization unit 41 is executed at the rotation speed specified based on the required amount of hypochlorous acid, and hypochlorous acid is released into the living room 2 regardless of the required amount of humidification. Therefore, the release amount of hypochlorous acid into the living room 2 can be increased compared to the case of the first control mode.

[0118] As described above, in the space purification device 40, by combining the first control mode and the second control mode to execute the humidification and purification operation, thereby, a predetermined amount of hypochlorous acid can be released into the living room 2 regardless of the season, and the cleanliness of the living room 2 can be maintained throughout the year.

[0119] As described above, according to the space purification device 40 according to the first embodiment, the following effects can be enjoyed.

[0120] (1) The space purification device 40 includes a miniaturization unit 41 that adds hypochlorous acid to the air introduced from the living room 2 by pumping and centrifugally crushing the stored hypochlorous acid water, and a control unit 60 that controls the rotational operation during centrifugal crushing in the miniaturization unit 41. The control unit 60 has a first control mode for controlling the rotational speed of the miniaturization unit 41 based on the humidification requirement amount for the living room 2, and a second control mode for controlling the rotational speed of the miniaturization unit 41 based on the hypochlorous acid requirement amount for the living room 2. When the operation mode information transmitted from the air conditioner 13 that adjusts the temperature of the air introduced from the living room 2 to the miniaturization unit 41 indicates a heating operation, the first control mode is executed, and when the operation mode information indicates a cooling operation, the second control mode is executed.

[0121] According to such a configuration, when the air conditioner 13 is performing a heating operation, that is, when the relative humidity in the living room 2 is low and it is a time when the humidification amount can be increased (for example, winter in Japan), the first control mode is executed. On the other hand, when the air conditioner 13 is performing a cooling operation, that is, when the humidification requirement amount for the living room 2 is small (for example, summer in Japan), the second control mode is executed. Thereby, in winter in Japan, since the miniaturization unit 41 executes a rotational operation based on the humidification requirement amount, the amount of hypochlorous acid released into the living room 2 can be easily adjusted according to the humidification requirement amount. On the other hand, in summer in Japan, since the miniaturization unit 41 executes a rotational operation based on the hypochlorous acid requirement amount, the amount of hypochlorous acid released into the living room 2 can be easily adjusted regardless of the humidification requirement amount. That is, in the space purification device 40, by combining the first control mode and the second control mode to execute the humidification and purification operation, it is possible to easily adjust the amount of hypochlorous acid released into the air throughout the year.

[0122] (2) In the space purification device 40, when the operation mode information of the air conditioner 13 indicates the heating operation and the temperature difference between the set temperature of the living room 2 (living room set temperature) and the outside air temperature outside the living room 2 is equal to or less than the reference temperature (for example, 6°C), the control unit 60 executes the second control mode. Thereby, in a situation where the heating operation of the air conditioner 13 substantially stops, since the atomization unit 41 executes a rotation operation based on the hypochlorous acid required amount, the amount of hypochlorous acid released into the living room 2 can be adjusted without causing a situation where a predetermined amount of hypochlorous acid is hardly released into the living room 2.

[0123] (3) In the space purification device 40, when the operation mode information indicates the operation stop of the air conditioner 13, the control unit 60 executes the second control mode. Thereby, in a period when air conditioning of the living room 2 is not required (for example, an intermediate period which is a transition period between summer and winter in Japan), since the atomization unit 41 executes a rotation operation based on the hypochlorous acid required amount, the amount of hypochlorous acid released into the living room 2 can be adjusted without causing a situation where a predetermined amount of hypochlorous acid is hardly released into the living room 2.

[0124] As described above, the present invention has been described based on the embodiments. However, it can be easily inferred that the present invention is not limited to the above embodiments at all, and various improvements and modifications can be made without departing from the spirit of the present invention.

[0125] In the space purification device 40 according to the present embodiment, when the humidity of the living room 2 becomes equal to or higher than the reference humidity (for example, relative humidity 80%) during the execution of the rotation operation in the second control mode, the control unit 60 may control to switch to the rotation operation in the first control mode. Thereby, the amount of humidification accompanying the release of hypochlorous acid into the living room 2 can be adjusted so that the living room 2 does not become overhumidified.

[0126] Also, in the space purification device 40 according to the present embodiment, the atomization unit 41 is configured to control the water shut-off state and the drainage state of the hypochlorous acid water stored in the mixing tank 42 by the rotational operation of the lift pipe 43a, but the present invention is not limited to this. For example, the atomization unit 41 may control the water shut-off state and the drainage state of the hypochlorous acid water stored in the mixing tank 42 using a general drainage mechanism (for example, a drain valve). However, in this case, it is necessary to reinterpret the lower limit rotation speed in the first control mode as 0 rpm. Such a configuration can also achieve the above-described effects.

Industrial Applicability

[0127] The space purification device according to the present invention can easily adjust the amount of hypochlorous acid released into the air when atomizing hypochlorous acid water to release hypochlorous acid into the air, and is useful as a device for sterilizing or deodorizing the air in a target space.

Explanation of Reference Numerals

[0128] 1 General residence 2, 2a, 2b, 2c, 2d Living room 3, 3a, 3b Conveying fan 4 Heat exchange fan 5, 5a, 5b, 5c, 5d Damper for living room 6, 6a, 6b, 6c, 6d Circulation port 7, 7a, 7b, 7c, 7d Living room exhaust port 8, 8a, 8b, 8c, 8d Living room air supply port 9 Circulation flow 10 Air supply flow 11 Intake flow 12 Indoor temperature and humidity sensor 13 Air conditioner 14 Suction temperature and humidity sensor 16 Outdoor temperature sensor 17 Dust collection filter 18 Space purification system 18a Air-conditioned room 20 Air conditioning system 30 Hypochlorous acid water generation unit 31 Brine tank 32 Brine transfer pump 33 Electrolytic cell 34 Electrode 35 Electrolytic cell supply valve 36 Hypochlorous acid water transfer pump 37 Water supply pipe 38 Hypochlorous acid water supply section 40 Space purification device 41 Minification section 42 Mixing tank 43 Centrifugal crushing unit 43a Lift pipe 44, 44a, 44b Water level sensors 45 Mixing tank supply valve 46 Strainer 47 Water supply pipe 48 Water supply section 49 Purified air duct 50 Operation panel 60 Control unit 61 Timing unit 62 Memory unit 63 Input unit 64 Processing unit 65 Output unit

Claims

1. A atomization unit that adds hypochlorous acid to the air introduced from the living space by pumping and centrifugally crushing the stored hypochlorous acid water; A control unit that controls the rotational operation during centrifugal crushing in the atomization unit; Comprising; The control unit controls the rotational speed of the atomization unit based on the humidification requirement amount for the living space, and has a first control mode in which air containing the hypochlorous acid is discharged into the living room space, and a second control mode in which the rotational speed of the atomization unit is controlled based on the hypochlorous acid requirement amount for the living space and air containing the hypochlorous acid is discharged into the living room space. When the operation mode information transmitted from the air conditioner that adjusts the temperature of the air introduced from the living space to the atomization unit indicates a heating operation, the first control mode is executed, and when the operation mode information indicates a cooling operation, the second control mode is executed. A space purification device characterized by this.

2. The control unit executes the second control mode when the operation mode information indicates a heating operation and the temperature difference between the set temperature of the living space and the outside air temperature outside the living space is less than or equal to a reference temperature. The space purification device according to claim 1.

3. The control unit executes the second control mode when the operation mode information indicates the stop of the operation of the air conditioner. The space purification device according to claim 1 or 2.

4. When the humidity of the living space becomes equal to or higher than a reference humidity during the execution of the rotational operation in the second control mode, the control unit switches to the rotational operation in the first control mode. The space purification device according to any one of claims 1 to 3.

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