Space purification device

Abstract

This space purification device is provided with: an electrolytic bath (100); an electrode unit (140) for generating hypochlorous acid water from the electrolysis accelerator (310) and water mixed in the electrolysis tank (100); a detection unit (for example, a magnetic force detection sensor (131)) that detects the presence or absence of a liquid at the electrode water level; an air blowing unit (430) that blows air containing hypochlorous acid water into the predetermined space; a humidification amount determination unit (511) that determines the humidification amount of hypochlorous acid water that humidifies a predetermined space by blowing air; a counting unit (512) that counts the elapsed time from when the last cleaning and maintenance of the electrolytic cell (100) is performed; a determination unit (513) that determines whether or not to notify the necessity of cleaning and maintenance on the basis of the elapsed time, the detection result, and the humidification amount; and a notification unit (514) that issues a need for cleaning and maintenance when it is determined that cleaning and maintenance are necessary.

Description

Technical Field

[0001] The invention relates to a space purification device. Background Art

[0002] To remove bacteria, fungi, viruses, and odors from the air, electrolytic water spray devices (space purification devices) are known that generate and release hypochlorous acid water through electrolysis. Conventional space purification devices generate hypochlorous acid water by repeating a cycle consisting of a period of electrolysis (power on) and a period of non-power off (power off) (see Patent Document 1).

[0003] Since space purification devices purify the space by drawing in surrounding air, dust and other particles may enter the water storage unit (also called an "electrolyzer" because it is the tank where electrolysis is performed) that contains the electrolysis unit (also called an "electrode unit" because it has electrode components), causing dust and other particles to adhere to the electrodes. Furthermore, space purification devices use tap water for space purification. Since tap water contains inorganic salts, scale, which is an inorganic salt in the tap water, may accumulate and adhere to the electrodes. Continuing to operate the electrodes while dust, scale, and other particles are attached may cause them to deteriorate.

[0004] Therefore, to prevent degradation, the space purification device needs to be cleaned and maintained regularly. Cleaning and maintenance of the space purification device includes the user treating the wastewater in the electrolytic cell (such as draining) and removing dust and scale attached to the electrolytic cell (electrode part).

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2019-30396 Summary of the Invention

[0008] During cleaning and maintenance, a large amount of water may remain in the electrolytic cell. This makes the electrolytic cell heavy and prone to overflowing. Therefore, performing cleaning and maintenance with a large amount of water remaining in the electrolytic cell will seriously affect the user's operational convenience.

[0009] Therefore, the present invention aims to solve the above-mentioned conventional problems, and its object is to provide a space purification device that is easier to clean and maintain when there is little water in the electrolytic cell.

[0010] To achieve this object, the space purification device of the present invention includes: an electrolytic cell for mixing an electrolysis accelerator and water; an electrode unit for generating hypochlorous acid water from the electrolysis accelerator and water mixed in the electrolytic cell; a detection unit for detecting whether the hypochlorous acid water in the electrolytic cell is present at a water level in which the electrode unit is immersed, i.e., an electrode water level; an air supply unit for inhaling air from a predetermined space, causing the inhaled air to contain the hypochlorous acid water, and delivering the air containing the hypochlorous acid water to the predetermined space; a humidification amount determination unit for determining the humidification amount of the hypochlorous acid water to humidify the predetermined space by the air supply; a counting unit for counting the time elapsed since the last cleaning and maintenance of the electrolytic cell; a determination unit for determining whether to notify that cleaning and maintenance is required based on the elapsed time counted by the counting unit, the detection result of the detection unit, and the humidification amount determined by the humidification determination unit; and a notification unit for issuing a notification that cleaning and maintenance is required if it is determined that cleaning and maintenance is required.

[0011] According to the present invention, it is possible to provide a space purification device that can be more easily cleaned and maintained when there is little water in the electrolytic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a figure which shows the internal structure of the space purification apparatus which concerns on embodiment.

[0013] Figure 2 It is a figure which shows the internal structure of the space purification apparatus which concerns on embodiment.

[0014] Figure 3 This is a schematic functional block diagram of a control unit according to an embodiment.

[0015] Figure 4 This is a flowchart showing the processing performed by the control unit according to the embodiment. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described with reference to the accompanying drawings. However, the embodiments shown below are merely examples of the technical concepts of the present invention and are not intended to limit the present invention. Unless otherwise specified, the numerical values, materials, shapes, and relative configurations described in the embodiments are not intended to limit the scope of the present invention and are merely examples of implementation.

[0017] (Implementation Method)

[0018] First, a space purification device 1000 according to an embodiment of the present invention will be described. Figure 1 10 is a diagram showing the internal structure of the space purification device 1000.

[0019] The space purification device 1000 includes an electrolytic cell 100 , a water supply unit 110 , an electrolysis accelerator injection unit 300 , an electrode unit 140 , a purification tank 200 , an electrolytic cell float 130 , a moving mechanism 210 , and a control unit 500 .

[0020] The electrolytic tank 100 has a box shape with an open top and has a structure capable of storing water, and stores water supplied from a water supply unit 110 described later. The electrolytic tank 100 can be removed for easy cleaning and maintenance.

[0021] The water supply unit 110 is a water tank that stores water and can be attached and removed from the electrolytic cell 100. A lid 112 is provided at the opening of the water supply unit 110, and an opening and closing portion (not shown) is provided in the center of the lid 112. When the opening and closing portion are opened, water from the water supply unit 110 is supplied to the electrolytic cell 100. Specifically, when the water supply unit 110 is installed in the retaining portion 103 of the electrolytic cell 100 with its opening facing downward, the valve member 114 is moved upward by the retaining portion 103, opening the opening and closing portion. In other words, when the water supply unit 110, filled with water, is installed in the electrolytic cell 100, the opening and closing portion opens, supplying water to the electrolytic cell 100 and accumulating water in the electrolytic cell 100. When the water level in the electrolytic cell 100 rises and reaches the position of the lid 112, the opening of the water supply unit 110 is sealed by water, and the water supply stops. If water remains inside water supply unit 110, the water inside water supply unit 110 is supplied to electrolytic cell 100 each time the water level inside electrolytic cell 100 drops. As a result, the water level inside electrolytic cell 100 is maintained constant. Alternatively, water supply unit 110 may not be a water storage tank. In this case, tap water is supplied to electrolytic cell 100. Even if the water level inside electrolytic cell 100 drops, tap water may be supplied until the water level inside electrolytic cell 100 rises to a predetermined level.

[0022] The electrolysis accelerator injection unit 300 is located above the electrolytic cell 100. The electrolysis accelerator injection unit 300 can be filled with an electrolysis accelerator 310. When the control unit 500 issues an instruction to inject the electrolysis accelerator 310, it rotates a tablet injection unit (not shown). As the tablet injection unit rotates, the electrolysis accelerator 310 falls into the electrolytic cell 100. The electrolysis accelerator injection unit 300 counts the number of electrolysis accelerators 310 that have fallen into the electrolytic cell 100. If a single tablet of electrolysis accelerator 310 has fallen into the electrolytic cell 100, the rotation of the tablet injection unit stops. In other words, the electrolysis accelerator injection unit 300 injects the electrolysis accelerator 310 into the electrolytic cell 100. The electrolysis accelerator 310 is, for example, sodium chloride and is formed into an electrolysis-accelerating tablet. The electrolysis accelerator 310 dissolves in the water within the electrolytic cell 100, thereby generating water containing chloride ions within the electrolytic cell 100. That is, the electrolytic cell 100 mixes the electrolysis accelerator 310 and water.

[0023] The electrode unit 140 is provided so as to be immersed in the water in the electrolytic cell 100. When electricity is supplied to the electrode unit 140, the water containing chloride ions in the electrolytic cell 100 is electrochemically electrolyzed to generate hypochlorous acid water (electrolyzed water).

[0024] Purification tank 200 has a box shape with an open top, and stores hypochlorous acid water supplied from electrolytic tank 100. In other words, it stores hypochlorous acid water generated in electrolytic tank 100. Purification tank 200 is provided with purification unit 400.

[0025] The purification unit 400 includes an air supply unit 430 that sucks in air from a predetermined space and adds the hypochlorous acid water from the electrolytic cell 100 to the sucked air, thereby humidifying the air and delivering the hypochlorous acid water-containing air to the predetermined space. The air supply unit 430 includes a fan 410 and a filter 420 .

[0026] The fan 410 is, for example, a sirocco fan and rotates according to the control of the control unit 500. For example, the fan 410 is controlled by the control unit 500 to achieve an air volume corresponding to the air volume setting input by the user. For example, the rotation of the fan 410 is controlled to achieve an air volume A1 (m / s) when the air volume setting is "low". 3 / h), air volume A2 (m 3 / h) and the air volume when the air volume is set to "large" (A3 (m 3 / h). The air volume gradually decreases in the order of A1, A2, and A3. Alternatively, the air volume setting of fan 410 may be automatically performed by control unit 500. The rotation of fan 410 draws air into the interior of space purification device 1000 through an air intake port provided on the housing of space purification device 1000.

[0027] Filter 420 is a component that brings the hypochlorous acid water stored in septic tank 200 into contact with the indoor air flowing into space purification device 1000 via fan 410. Filter 420 is cylindrical in shape, with holes around its circumference for air circulation. One end of filter 420 is immersed in the hypochlorous acid water stored in septic tank 200 to retain moisture. Filter 420 is built into septic tank 200, rotatable about its central axis. Filter 420 is rotated by a drive unit (not shown), continuously bringing the hypochlorous acid water into contact with the indoor air.

[0028] However, an air path is formed inside the space purification device 1000, extending from the air intake port to the filter 420, fan 410, and outlet. When the fan 410 rotates, the outside air drawn in from the air intake port and entering the air path passes through the filter 420, fan 410, and outlet in sequence, and is blown out of the space purification device 1000. As a result, the air containing the hypochlorous acid water in the purification tank 200 is released to the outside. In other words, the purification unit 400 uses the hypochlorous acid water stored in the purification tank 200 to purify the space. It can also be said that the space purification device 1000 simultaneously performs humidification and space purification.

[0029] The electrolytic cell 100 also includes an electrolytic cell float 130 and a magnetic detection sensor 131. Using the electrolytic cell float 130, the magnetic detection sensor 131 detects the presence of water or hypochlorous acid water at the water level where the electrode unit 140 is immersed, i.e., the electrode water level. If power is supplied to the electrode unit 140 when it is not immersed in water, the life of the electrode unit 140 will be shortened. Therefore, the electrolytic cell float 130 and the magnetic detection sensor 131 are provided to prevent this. In this embodiment, water, hypochlorous acid water, and a mixture of water and hypochlorous acid water are collectively referred to as "water." The electrolytic cell float 130 has buoyancy and also includes a magnet (not shown). The magnetic detection sensor 131 detects the magnet of the electrolytic cell float 130 by detecting the magnetic field emitted from the magnet. For example, when water reaches the electrolytic cell float 130, the electrolytic cell float 130 moves to a predetermined position due to buoyancy, and the magnetic force detection sensor 131 detects the magnet by detecting the magnetic field emitted from the magnet mounted on the electrolytic cell float 130. On the other hand, when water does not reach the electrolytic cell float 130, the electrolytic cell float 130 descends (tilts), and the magnet mounted on the electrolytic cell float 130 and the magnetic force detection sensor 131 no longer face each other. Therefore, the magnetic force detection sensor 131 cannot detect the magnet mounted on the electrolytic cell float 130. If the magnetic force detection sensor 131 of this embodiment cannot detect the magnet mounted on the electrolytic cell float 130, it is determined that the water in the electrolytic cell 100 has not reached the electrode water level.

[0030] The magnetic detection sensor 131 detects whether water from the electrolytic cell 100 exists at the electrode water level. When the magnetic detection sensor 131 of the present embodiment is able to detect the magnet provided on the electrolytic cell float 130, it is determined that water from the electrolytic cell 100 exists at the electrode water level. The magnetic detection sensor 131 sends the detection result to the control unit 500. The magnetic detection sensor 131 of the present embodiment (the electrolytic cell float 130 and the magnetic detection sensor 131) is an example of a detection unit that detects whether hypochlorous acid water from the electrolytic cell exists at the electrode water level of the electrode portion. In addition, as Figure 1As shown, if water exists in the water tank of the water supply unit 110, the magnetic detection sensor 131 determines that water exists in the electrolytic cell 100 at the electrode water level.

[0031] Furthermore, in this embodiment, the electrode water level of the electrolytic cell 100 is set to the full water level, which indicates that the electrolytic cell 100 is full of water. That is, the magnetic detection sensor 131 detects whether the electrolytic cell 100 is full of water. The magnetic detection sensor 131 of this embodiment determines that the water in the electrolytic cell 100 is at the full water level when it can detect the magnet provided on the electrolytic cell float 130, and detects that the electrolytic cell 100 is full of water. The term "full water" here does not refer to a water level (position) that is 100% of the capacity of the electrolytic cell 100; the full water level may also be defined as a water level that does not overflow even if water is added.

[0032] The electrolytic cell 100 has an opening 101 provided on the bottom surface of the electrolytic cell 100 and a valve member 102 covering the opening 101. The valve member 102 is moved vertically by a moving mechanism 210 provided on the purification unit 400. The purification tank 200 is disposed below the opening 101. The moving mechanism 210 controls the opening 101 to open when the valve member 102 moves away from the edge of the opening 101, allowing water from the electrolytic cell 100 to be supplied to the purification tank 200. When the valve member 102 contacts the edge of the opening 101, the opening 101 closes, stopping the water supply from the electrolytic cell 100 to the purification tank 200.

[0033] The septic tank 200 includes a moving mechanism 210 . The moving mechanism 210 includes a lever 211 and a septic tank float 212 provided at one end of the lever 211 .

[0034] The lever portion 211 has two ends that rotate in the vertical direction. The lever portion 211 includes a rotation axis portion 213 and a connection portion 214. The lever portion 211 has two ends that rotate in the vertical direction about the rotation axis portion 213. The connection portion 214 is provided at the other end of the lever portion 211 and is connected to the valve member 102.

[0035] The septic tank float 212 has buoyancy and floats on the water surface of the septic tank 200 within the vertical movement range of the lever portion 211 and moves along with the water surface.

[0036] In the above configuration, when the water level in the septic tank 200 drops, the septic tank float 212 also drops, causing the connecting portion 214 and valve member 102 to rise, and the valve member 102 to separate from the edge of the opening 101. This opens the opening 101, allowing the water from the electrolytic cell 100 to be supplied to the septic tank 200. On the other hand, when the water level in the septic tank 200 rises, the septic tank float 212 also rises, causing the connecting portion 214 and valve member 102 to drop, and the valve member 102 to contact the edge of the opening 101. This closes the opening 101, stopping the supply of water from the electrolytic cell 100. The water level in the septic tank 200, when the supply of water from the electrolytic cell 100 to the septic tank 200 is stopped, becomes the septic tank stable water level.

[0037] The control unit 500 receives the detection result from the magnetic force detection sensor 131. The control unit 500 also controls the electrode unit 140, the electrolysis accelerator feeding unit 300, and the purification unit 400. The processing of the control unit 500 will be described in detail later.

[0038] Here, use Figure 1 and Figure 2 , which illustrates an example of the process from the generation to the release of hypochlorous acid water. Figure 2 The state of water supply to the electrolytic cell 100 and the purification cell 200 is shown.

[0039] First, assume that there is no water in electrolytic cell 100 or septic tank 200. This corresponds to, for example, the situation where space purification device 1000 has been purchased and installed, or the situation where there is no water in electrolytic cell 100 or septic tank 200 after draining, cleaning, or other maintenance. In this state, septic tank float 212 descends, causing connection portion 214 and valve member 102 to rise, opening 101.

[0040] The user fills the water supply unit 110 with water and installs the water supply unit 110 on the electrolytic cell 100. When the water supply unit 110 is installed in the holding portion 103 of the electrolytic cell 100, the opening and closing portion of the lid 112 is opened, and water is supplied from the water supply unit 110 to the electrolytic cell 100. The water in the electrolytic cell 100 is supplied to the purification tank 200 through the opening 101 (see FIG. 2 ). Figure 2 ). When the water level in the septic tank 200 rises, the septic tank float 212 also rises, and the connecting portion 214 and the valve member 102 fall. When the water level in the septic tank 200 reaches the constant water level in the septic tank, the valve member 102 contacts the edge of the opening 101, closing the opening 101 and stopping the water supply from the electrolytic tank 100. When the opening 101 is closed, the water level in the electrolytic tank 100 rises. When the electrolytic tank 100 is full of water, the opening of the water supply unit 110 is sealed with water, and the water supply from the water supply unit 110 is stopped (see Figure 1Alternatively, tap water may be supplied until the water level in the electrolytic cell 100 reaches a full state. Whether the electrolytic cell is full of water may be determined based on the detection result of the magnetic detection sensor 131 using the electrolytic cell full water float 130.

[0041] Electrolysis accelerator injection unit 300 injects electrolysis accelerator 310 into electrolytic cell 100. Submerged in water, electrolysis accelerator 310 dissolves in the water. This causes electrolytic cell 100 to be filled with water containing chloride ions. Alternatively, the user can inject electrolysis accelerator 310.

[0042] The control unit 500 applies electricity to the electrode unit 140 to electrolyze the water containing chloride ions to generate hypochlorous acid water. As a result, hypochlorous acid water having a target hypochlorous acid concentration is generated.

[0043] The controller 500 operates the purification unit 400, thereby releasing air that has come into contact with the water in the septic tank 200 to the exterior of the space purification device 1000. By releasing air that has come into contact with the water in the septic tank 200 to the exterior of the space purification device 1000, the water level in the septic tank 200 decreases over time. As the water level in the septic tank 200 decreases, the septic tank float 212 also descends, causing the connecting portion 214 and the valve member 102 to rise, separating the valve member 102 from the edge of the opening 101. This opens the opening 101, allowing water from the electrolytic tank 100 to be supplied to the septic tank 200. As a result, as the water level in the electrolytic tank 100 decreases, the water seal on the opening and closing portion of the water supply unit 110 is released, allowing water to be supplied to the electrolytic tank 100 again from the water supply unit 110, maintaining the water level in the electrolytic tank 100 constant. Alternatively, if the water level in the electrolytic tank 100 decreases, tap water may be supplied until the electrolytic tank 100 is filled.

[0044] When water is supplied from the water supply unit 110 to the electrolytic cell 100 , the hypochlorous acid water in the electrolytic cell 100 is diluted by the water supplied from the water supply unit 110 , and the concentration of the hypochlorous acid water in the electrolytic cell 100 becomes lower than the target hypochlorous acid water concentration.

[0045] When the concentration of the hypochlorous acid water in the electrolytic cell 100 is lower than the target concentration of the hypochlorous acid water, the control unit 500 energizes the electrode unit 140 to make the concentration of the hypochlorous acid water in the electrolytic cell 100 reach the target concentration again.

[0046] As described above, as time passes, the level of the hypochlorous acid water in the purification tank 200 drops. Consequently, the purification tank float 212 also drops, causing the connecting portion 214 and the valve member 102 to rise. The valve member 102 then moves away from the edge of the opening 101. This opens the opening 101, allowing the water from the electrolytic cell 100 to be supplied to the purification tank 200. This allows the space purification device 1000 to continue releasing air containing the hypochlorous acid water.

[0047] In order to prevent degradation caused by the adhesion of substances such as dust and scale to the electrode unit 140, regular cleaning and maintenance are required for the space purification device 1000. Cleaning and maintenance of the space purification device 1000 refers to operations performed by the user, such as treating wastewater (e.g., drainage) within the electrolytic cell 100 or removing dust and scale from the electrolytic cell 100 (electrode unit 140).

[0048] For example, suppose that when the electrode unit 140 is energized for a period exceeding a predetermined time, a notification is issued indicating that the space purification device 1000 requires cleaning and maintenance (hereinafter sometimes referred to as a cleaning and maintenance notification). However, with this notification method, the cleaning and maintenance notification may be issued while a significant amount of water remains in the electrolytic cell 100. As a result, cleaning and maintenance may be performed while a significant amount of water remains in the electrolytic cell 100. Since the electrolytic cell 100 is too heavy or water is easily overflowed when a significant amount of water remains in the electrolytic cell 100, performing cleaning and maintenance while a significant amount of water remains in the electrolytic cell 100 increases the burden on the user.

[0049] On the other hand, in order to determine the absence of water in the electrolytic cell 100, it is also possible to consider installing a float sensor (water level sensor) at the bottom of the electrolytic cell 100, but this may increase the size of the device and the cost. The present invention is to provide a space purification device 1000 that does not install a float sensor (water level sensor) at the bottom of the electrolytic cell 100, thereby facilitating cleaning and maintenance when the electrolytic cell 100 is low in water.

[0050] In view of the above, the functions and control flow of the space purification device 1000 according to this embodiment will be described in detail below.

[0051] Figure 3 This is a schematic functional block diagram of the control unit 500 of this embodiment. The control unit 500 includes a humidification amount determination unit 511, a counting unit 512, a determination unit 513, a notification unit 514, an electrode control unit 540, an air supply control unit 550, an electrolysis accelerator dosage control unit 560, and a storage unit 570. The various functional modules of the control unit 500 can be implemented in hardware using electronic components such as a computer's CPU (Central Processing Unit) or mechanical devices, or in software using computer programs. Here, the functional modules implemented by the collaboration of these elements are described. Therefore, these functional modules can be implemented in various forms, combining hardware and software.

[0052] The electrode control unit 540 controls the energization of the electrode unit 140 , thereby enabling the electrolytic cell 100 to produce hypochlorous acid water having a target hypochlorous acid concentration.

[0053] The air supply control unit 550 controls the air supply (air supply volume) of the air supply unit 430. For example, the air supply control unit 550 controls the air supply volume by controlling the rotation speed of the fan 410.

[0054] The electrolysis accelerator injection control unit 560 controls the electrolysis accelerator injection unit 300 to inject the electrolysis accelerator 310 .

[0055] The storage unit 570 is a so-called memory that stores programs and various values ​​used to execute the processing of the control unit 500 of the present invention. For example, the storage unit 570 stores the remaining water level in the electrolytic cell 100 at the time (time) when the capacity or electrode water level of the electrolytic cell 100 is determined to be empty. The determination of empty water at the electrode water level refers to the time when the state of determination of water at the electrode water level changes from the state of determination of water at the electrode water level to the state of determination of empty water at the electrode water level. This remaining water level is determined by previously measuring the remaining water level in the electrolytic cell 100 at the time of determination of empty water at the electrode water level, for example, through experiments. The remaining water level in the electrolytic cell 100 at the time of determination of empty water at the electrode water level is substantially the same as the remaining water level in the electrolytic cell 100 at the electrode water level of the electrolytic cell 100, and therefore can also be referred to as the remaining water level in the electrolytic cell 100 at the electrode water level of the electrolytic cell 100. Furthermore, the storage unit 570 may store the remaining water level of the electrolytic cell 100 at the electrode water level of the electrolytic cell 100, rather than the remaining water level of the electrolytic cell 100 when it is determined that there is no water at the electrode water level. The remaining water level of the electrolytic cell 100 at the electrode water level of the electrolytic cell 100 is determined in advance by measuring the remaining water level of the electrolytic cell 100 at the electrode water level through experiments or the like.

[0056] The humidification amount determination unit 511 determines the humidification amount per unit time of the hypochlorous acid water for humidifying the predetermined space based on the temperature of the predetermined space, the humidity of the predetermined space, and the air flow rate of the air blower 430 .

[0057] Humidification amount determination unit 511 obtains the humidification amount per unit time based on the temperature and humidity of the specified space, and the air flow rate (hereinafter referred to as the set air flow rate) of air supply unit 430 (fan 410) set by the user or control unit 500. Specifically, as an example, humidification amount determination unit 511 calculates the humidification amount per unit time using a humidification amount table. The humidification amount table is a table that associates multiple temperatures, multiple humidity levels, multiple air flow rates, and multiple humidification amounts per unit time, and is stored in storage unit 570.

[0058] The humidification amount per unit time for each temperature, humidity, and air flow rate is measured experimentally in advance using a temperature sensor, a humidity sensor, and an air flow meter. The humidification amount per unit time corresponding to each temperature, humidity, and air flow rate is stored in a humidification amount table as the measurement results. The humidification amount table stores the humidification amount per unit time corresponding to each temperature and humidity for all air flows that can be set by the user or the control unit 500.

[0059] The humidification amount determination unit 511 calculates the humidification amount per unit time based on the temperature measured by the temperature sensor installed in the space purification device 1000 and the temperature sensor installed in the specified space, the humidity measured by the humidity sensor installed in the space purification device 1000 and the humidity sensor installed in the specified space, the set air volume and the humidification amount table.

[0060] As another example, the humidification amount determination unit 511 may calculate (determine) the humidification amount per unit time (g / h) according to the measured temperature, the measured humidity, and the set air volume using the following formula (1):

[0061] (Humidification amount per unit time) = (B-Bin) × Q × ρ… Formula (1)

[0062] In formula (1), B represents the absolute humidity after humidification, Bin represents the absolute humidity before humidification, and Q represents the set air volume (m 3 / h), ρ represents the air density (kg / m 3 The humidification amount determination unit 511 may also calculate the absolute humidity before humidification Bin based on the temperature and humidity measured at a certain time, and calculate the absolute humidity after humidification B based on the temperature and humidity measured at a time after that time (a time after a unit time has passed from that time).

[0063] The humidification amount determination unit 511 determines the humidification amount for the space, that is, the supply amount of hypochlorous acid water from the electrolytic cell 100 to the purification tank 200 , by integrating the humidification amounts per unit time.

[0064] The counting unit 512 counts the time that has passed since the last cleaning and maintenance of the electrolytic cell 100. For example, the space purification device 1000 includes a maintenance completion button, which is pressed by the user when the cleaning and maintenance are complete. When the cleaning and maintenance are complete, the user presses the maintenance completion button, and the control unit 500 receives information indicating that the maintenance completion button has been pressed. The counting unit 512 counts the time that has passed since receiving the information indicating that the maintenance completion button has been pressed.

[0065] The decision unit 513 decides whether to issue a notice that cleaning maintenance is required based on the elapsed time counted by the counting unit 512, the detection result of the magnetic force detection sensor 131, and the humidification amount determined by the humidification amount determination unit 511. The decision method of the decision unit 513 will be described later.

[0066] When the notification unit 514 determines that cleaning and maintenance are required, it issues a notification that cleaning and maintenance is required. For example, the notification unit 514 may notify the user of the need for cleaning and maintenance by lighting an LED in the space purification device 1000, displaying a message on a display device, or emitting a buzzer sound from a speaker. Furthermore, the notification unit 514 may communicate with a user's portable terminal and issue the notification of the need for cleaning and maintenance using the portable terminal.

[0067] A flowchart will be described for the control unit 500 having the above configuration. Figure 4 This is a flowchart showing the process S10 of the control unit 500 according to this embodiment.

[0068] The counting unit 512 starts counting the elapsed time (step S11 ). The counting of the elapsed time starts, for example, from the completion of the last cleaning and maintenance of the space purification device 1000 . The counting unit 512 stores the counted elapsed time in the storage unit 570 .

[0069] Determining unit 513 determines whether the counted elapsed time is greater than or equal to a first time threshold T1 (step S12). The first time threshold T1 is, for example, a standard cleaning and maintenance period of 30 days. If the elapsed time is greater than or equal to the first time threshold T1 (step S12 returns Yes), processing S10 proceeds to step S13. If the elapsed time is less than or equal to the first time threshold T1 (step S12 returns No), processing S10 returns to step S12 and repeats step S12 until the elapsed time reaches or exceeds the first time threshold T1.

[0070] Based on the detection results of the magnetic detection sensor 131, the determination unit 513 determines whether water is present at the electrode water level of the electrolytic cell 100 (step S13). If the detection result indicates that water is not present at the electrode water level of the electrolytic cell 100, that is, if the magnetic detection sensor 131 determines that water is not present at the electrode water level (No in step S13), the process S10 proceeds to step S14. If the detection result indicates that water is not present at the electrode water level of the electrolytic cell 100, in this embodiment, the electrode control unit 540 de-energizes the electrode unit 140, and the air supply control unit 550 continues air supply from the air supply unit 430. Alternatively, the air supply control unit 550 may also de-energize the air supply from the air supply unit 430. When the detection result indicates that water exists at the electrode water level of the electrolytic cell 100, that is, when the magnetic detection sensor 131 determines that water exists at the electrode water level (Yes in step S13), processing S10 returns to step S13, and step S13 is repeated until the detection result indicates that water does not exist at the electrode water level of the electrolytic cell 100.

[0071] Humidification amount determination unit 511 begins accumulating the humidification amount (step S14). Furthermore, as purification unit 400 humidifies the space, the amount of water in septic tank 200 decreases. As the amount of water in septic tank 200 decreases, water is supplied from electrolytic cell 100 to septic tank 200. In other words, the humidification amount determined by humidification amount determination unit 511 can be considered to determine the amount of water supplied from electrolytic cell 100 to septic tank 200. In other words, the accumulated humidification amount (calculated from the start of accumulation) can be considered to be the amount of water reduced in electrolytic cell 100 since the detection results confirmed a change from the presence of water at the electrode water level in electrolytic cell 100 to the absence of water. For example, humidification amount determination unit 511 determines and accumulates the humidification amount for each unit time (e.g., one minute) starting from the time it determines that no water is present at the electrode water level. Humidification amount determination unit 511 stores the accumulated humidification amount in storage unit 570.

[0072] The determination unit 513 determines whether the accumulated humidification amount is greater than or equal to a predetermined water amount H1 (step S15). The predetermined water amount H1 is, for example, an amount of water less than or equal to the remaining water level in the electrolytic cell 100 at the electrode water level of the electrolytic cell 100, more preferably, the remaining water level in the electrolytic cell 100 at the electrode water level of the electrolytic cell 100. Alternatively, the predetermined water amount H1 may be, for example, an amount of water less than or equal to the remaining water level in the electrolytic cell 100 when it is determined that no water is present at the electrode water level, more preferably, the remaining water level in the electrolytic cell 100 when it is determined that no water is present at the electrode water level. Alternatively, the predetermined water amount H1 may be, for example, an amount of water less than or equal to the remaining water level in the electrolytic cell 100 at the electrode water level of the electrolytic cell 100, an amount of water less than or equal to the remaining water level in the electrolytic cell 100 when it is determined that no water is present at the electrode water level, or another amount of water. Specifically, the predetermined water volume H1 is preferably less than the remaining water volume in the electrolytic cell 100 at the electrode water level of the electrolytic cell 100, and closer to the remaining water volume in the electrolytic cell 100 at the electrode water level of the electrolytic cell 100. Furthermore, the predetermined water volume H1 is preferably less than the remaining water volume in the electrolytic cell 100 when it is determined that no water is present at the electrode water level, and closer to the remaining water volume in the electrolytic cell 100 when it is determined that no water is present at the electrode water level. Setting the preferred predetermined water volume H1 allows cleaning and maintenance to be performed while the water content in the electrolytic cell 100 is low, thereby improving user convenience. If the humidification volume is greater than the predetermined water volume H1 (Yes in step S15), process S10 proceeds to step S17. If the humidification volume is less than the predetermined water volume H1 (No in step S15), process S10 proceeds to step S16.

[0073] The decision unit 513 determines whether the elapsed time is greater than or equal to the second time threshold T2 (step S16). The second time threshold T2 is, for example, 33 days, which is greater than the first time threshold T1. If the elapsed time is greater than or equal to the second time threshold T2 (Yes in step S16), the process S10 proceeds to step S17. If the elapsed time is less than or equal to the second time threshold T2 (No in step S16), the process S10 returns to step S15.

[0074] Notification unit 514 issues a cleaning maintenance notification (step S17). This allows the user to recognize that cleaning maintenance is necessary. By having the user perform cleaning maintenance, degradation of electrode unit 140 can be suppressed. Furthermore, since the cleaning maintenance notification is issued when the accumulated humidification volume exceeds a predetermined water volume H1, cleaning maintenance can be performed even when the electrolytic cell 100 is low on water, improving user convenience.

[0075] Here, if the elapsed time increases, scale may adhere to the electrode unit 140, making it difficult for the scale to be removed from the electrode unit 140, thereby accelerating the degradation of the electrode unit 140. Therefore, when the elapsed time is equal to or greater than the second time threshold T2, a cleaning maintenance notification is issued regardless of the remaining water level in the electrolytic cell 100. This can suppress degradation of the electrode unit 140.

[0076] The storage unit 570 resets the elapsed time and accumulated humidification amount counted at the end of cleaning and maintenance (step S18). For example, the end of maintenance may be determined when the user presses the maintenance end button set in the space purification device 1000, or when a specified time has passed since the cleaning and maintenance notification.

[0077] After step S18, the process S10 ends.

[0078] In addition, in this embodiment, the space purification device 1000 adopts a double-tank structure in which the hypochlorous acid water generated in the electrolytic cell 100 is supplied to the purification tank 200. However, a single-tank structure may be adopted in which the purification tank 200 is not provided and the air supply unit 430 (the filter 420 immersed in the hypochlorous acid water stored in the electrolytic cell 100) is provided in the electrolytic cell 100.

[0079] Furthermore, the decision unit 513 may also decide whether to issue a notice indicating that cleaning maintenance is required based on the elapsed time counted by the counting unit 512, the detection result of the magnetic detection sensor 131, and the humidification amount determined by the humidification amount determination unit 511. Details will be described later.

[0080] If a cleaning and maintenance notice is issued, the notification unit 514 issues the notice. For example, the notification unit 514 may notify the user of the impending cleaning and maintenance by lighting an LED on the space purification device 1000, displaying a message on a display device, or sounding a buzzer from a speaker. Furthermore, the notification unit 514 may communicate with the user's portable terminal and issue the cleaning and maintenance notice using the portable terminal.

[0081] Specifically, the determination unit 513 determines whether the counted elapsed time is greater than or equal to a first time threshold value T1. If the elapsed time is greater than or equal to the first time threshold value T1, the determination unit 513 determines whether water is present at the electrode water level of the electrolytic cell 100 based on the detection result of the magnetic detection sensor 131. If the detection result indicates that water is not present at the electrode water level of the electrolytic cell 100, that is, if the magnetic detection sensor 131 determines that water is not present at the electrode water level, the electrode control unit 540 de-energizes the electrode unit 140, and the air supply control unit 550 continues air supply from the air supply unit 430.

[0082] If the detection result indicates that water does not exist at the electrode water level of the electrolytic cell 100 , the humidification amount determination unit 511 starts integrating the humidification amount and stores the integrated humidification amount in the storage unit 570 .

[0083] Determining unit 513 determines whether the accumulated humidification volume is greater than or equal to a forecast water volume H2, which is less than the specified water volume H1. Forecast water volume H2 is a water volume less than the specified water volume H1 by a specified amount. By setting forecast water volume H2, it is possible to notify the user that cleaning and maintenance are required in the near future, thereby improving user convenience. If the humidification volume exceeds forecast water volume H2, notification unit 514 issues a notice indicating the need for cleaning and maintenance. This allows the user to be informed of the need for cleaning and maintenance in the near future.

[0084] In short, when the elapsed time is greater than or equal to a predetermined first time threshold T1, the humidification amount determination unit 511 accumulates the humidification amount per unit time since the magnetic detection sensor 131 (electrolytic cell float 130 and magnetic detection sensor 131), acting as the detection unit, determined that no hypochlorous acid water was present at the electrode water level, thereby calculating the humidification amount from the time of determination. If the humidification amount from the time of determination exceeds the predicted water volume H2, which is less than the predetermined water volume H1, the notification unit 514 issues a notification indicating the need for cleaning and maintenance. This improves user convenience.

[0085] Hereinafter, the structure and effects of the present invention will be described.

[0086] The space purification device of the present invention includes: an electrolytic cell that mixes an electrolysis accelerator and water; an electrode unit that generates hypochlorous acid water from the electrolysis accelerator and water mixed in the electrolytic cell; a detection unit that detects the presence of hypochlorous acid water in the electrolytic cell at the electrode water level, i.e., the electrode water level, where the electrode unit is immersed; an air supply unit that draws air from a predetermined space, causes the drawn air to contain hypochlorous acid water, and delivers the air containing hypochlorous acid water to the predetermined space; a humidification amount determination unit that determines the amount of hypochlorous acid water to be humidified in the predetermined space by air supply; a counting unit that counts the time elapsed since the last cleaning and maintenance of the electrolytic cell; a determination unit that determines whether to notify the user of the need for cleaning and maintenance based on the elapsed time counted by the counting unit, the detection result of the detection unit, and the humidification amount determined by the humidification determination unit; and a notification unit that, if it is determined that cleaning and maintenance is required, issues a notification that cleaning and maintenance is required. According to this structure, cleaning and maintenance can be easily performed when there is little water in the electrolytic cell. Furthermore, since there is no need to provide a float sensor (water level sensor) that is additionally provided at the bottom of the electrolytic cell 100 in order to determine whether there is no water in the electrolytic cell 100 , an increase in cost can be suppressed.

[0087] The humidification amount determination unit determines the humidification amount per unit time based on the temperature of the specified space, the humidity of the specified space, and the air supply volume of the air supply unit. When the elapsed time is greater than a predetermined first time threshold, the detection unit accumulates the humidification amount per unit time since the determination that no hypochlorous acid water is present at the electrode water level, thereby calculating the humidification amount from the time of the determination. When the humidification amount from the time of the determination is greater than a predetermined amount, the notification unit issues a notification that cleaning maintenance is required. According to this configuration, when the elapsed time is greater than the predetermined time threshold and cleaning maintenance is required, the notification that cleaning maintenance is required is issued if the hypochlorous acid water in the electrolytic cell has decreased by more than a predetermined amount since the determination that no hypochlorous acid water is present at the electrode water level. As a result, cleaning maintenance can be performed even when the electrolytic cell is low on water.

[0088] The predetermined water volume is a water volume less than the remaining water volume in the electrolytic cell at the time of the above-mentioned determination. According to this configuration, cleaning and maintenance can be performed when there is little water in the electrolytic cell.

[0089] The predetermined amount of water is equal to or greater than half of the amount of water remaining in the electrolytic cell at the time of the above determination. According to this configuration, cleaning and maintenance can be performed with less water in the electrolytic cell.

[0090] If the elapsed time exceeds a second time threshold that is greater than the first time threshold, the notification unit will issue a notice that cleaning and maintenance is required, even if the humidification amount since the time of the above determination is less than the specified water amount. This configuration can suppress degradation of the electrode unit due to, for example, increased adhesion of scale to the electrode unit due to prolonged periods of non-cleaning and maintenance.

[0091] Industrial applicability

[0092] The space purification device according to the present invention is very useful as a space purification device for removing bacteria, fungi, viruses, odors, etc. in the air (including deactivation).

[0093] Description of Reference Numerals

[0094] 100 electrolytic cells

[0095] 101 Opening

[0096] 102 valve components

[0097] 103 Maintenance Department

[0098] 110 Water Supply Department

[0099] 112 cover

[0100] 114 valve components

[0101] 130 electrolytic cell buoy

[0102] 131 magnetic detection sensor

[0103] 140 electrode part

[0104] 200 septic tanks

[0105] 210 mobile mechanism

[0106] 211 Lever Department

[0107] 212 septic tank buoy

[0108] 213 rotating shaft part

[0109] 214 connection part

[0110] 300 electrolysis accelerator input unit

[0111] 310 electrolysis accelerator

[0112] 400 Purification Department

[0113] 410 fan

[0114] 420 filter

[0115] 430 air supply department

[0116] 500 Control Department

[0117] 511 Humidification amount determination unit

[0118] 512 counting department

[0119] 513 Decision Department

[0120] 514 Notification Department

[0121] 540 electrode control unit

[0122] 550 air supply control unit

[0123] 560 Electrolysis Accelerator Input Control Department

[0124] 570 Storage Department

[0125] 1000 space purification devices.

Claims

1. A space purification device, comprising: an electrolysis cell for mixing an electrolysis accelerator and water; an electrode portion for generating hypochlorous acid water from the electrolysis accelerator and the water mixed in the electrolytic cell; a detection unit that detects whether the hypochlorous acid water in the electrolytic cell exists at an electrode water level, which is a water level in which the electrode unit is immersed; an air supply unit for sucking air from a predetermined space, causing the sucked air to contain the hypochlorous acid water, and delivering the air containing the hypochlorous acid water to the predetermined space; a humidification amount determining unit for determining a humidification amount of the hypochlorous acid water for humidifying the predetermined space by the air supply; a counting unit for counting the time elapsed since the last cleaning and maintenance of the electrolytic cell; a decision unit that determines whether to notify that cleaning maintenance is required based on the elapsed time counted by the counting unit, the detection result of the detection unit, and the humidification amount determined by the humidification determination unit; and The notification unit issues a notification that the cleaning maintenance is necessary when deciding to notify that the cleaning maintenance is necessary.

2. The space purification device according to claim 1, wherein: The humidification amount determination unit determines the humidification amount per unit time based on the temperature of the predetermined space, the humidity of the predetermined space, and the air flow rate of the air supply unit. When the elapsed time is equal to or longer than a predetermined first time threshold, the humidification amount per unit time from the time when the detection unit determines that the hypochlorous acid water is absent at the electrode water level is accumulated, and the humidification amount from the time of the determination is calculated; The notification unit issues a notification indicating that the cleaning maintenance is necessary when the amount of humidification since the determination is equal to or greater than a predetermined amount of water.

3. The space purification device according to claim 2, wherein: The predetermined water volume is a water volume that is less than or equal to the remaining water volume in the electrolytic cell at the time of the determination.

4. The space purification device according to claim 3, wherein: The predetermined water volume is a water volume that is equal to or greater than half of the remaining water volume in the electrolytic cell at the time of the determination.

5. The space purification device according to claim 2, wherein: When the elapsed time is equal to or longer than a second time threshold value that is greater than the predetermined first time threshold value, the notification unit notifies that the cleaning maintenance is necessary even if the humidification amount since the determination is less than the predetermined water amount.

6. The space purification device according to claim 2, wherein: When the elapsed time is equal to or greater than a predetermined first time threshold, the humidification amount determination unit calculates the humidification amount from the time of determination by integrating the humidification amount per unit time since the detection unit determined that the hypochlorous acid water was absent at the electrode water level. The notification unit issues a notification indicating that the cleaning maintenance is necessary when the humidification amount from the time of the determination is equal to or greater than a predicted water amount that is less than the predetermined water amount.

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