Air purifying device

Abstract

The air purifying apparatus of the present disclosure includes a main body case provided with a suction port and a blowout port. The main body case has a gas-liquid contact portion (23) that brings air into contact with hypochlorous acid-containing water, an air passage, a blowout device, an electrolytic cell, a water supply region, a sterilization region, a first delivery portion (18), a second delivery portion, a control portion, and a water supply portion. The water supply region and the sterilization region are provided within a water storage container (21). The water storage container (21) has a first guide portion (53) that guides water in the sterilization region to the water supply region when a water level in the sterilization region reaches a prescribed water level or more.

Description

Technical Field

[0001] This disclosure relates to an air purification device that uses salt water in a water storage container to generate hypochlorous acid, causing a filter partially immersed in the water in the water storage container to rotate, and has an air passage that uses the hypochlorous acid-containing water for sterilization through the filter ventilation. Background Technology

[0002] As an existing air purification device, one known air purification device includes: a main body housing having an air intake and an air outlet; a water storage container equipped with an electrolysis unit having electrodes for electrochemically treating water; a gas-liquid contact section capable of maintaining water in the water storage container; a fan supplying air to the gas-liquid contact section; and a water supply section automatically supplying water in a manner that keeps the water level in the water storage container constant (e.g., Patent Document 1). In existing air purification devices, air flowing from outside the main body housing into the main body is sterilized by passing through the gas-liquid contact section.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2017-110876 Summary of the Invention

[0006] In existing air purification devices, airflow into the main body passes through a gas-liquid contact section, where airborne particles are collected by water and stored in a water container. These accumulated particles often hinder the electrochemical treatment of the electrolysis unit. Therefore, the generation of hypochlorous acid by the electrolysis unit decreases, and the sterilization performance becomes unstable.

[0007] One method to solve this problem involves an electrolytic cell with an electrolysis unit installed separately from the water storage container, a conveying unit for conveying electrochemically treated water to the water storage container having a gas-liquid contact section, and a control unit for controlling the conveying unit. However, this structure has a problem: if a malfunction of the control unit results in the conveying of an amount of water exceeding the expected amount, water may overflow from the water storage container and leak out of the main body.

[0008] The air purification device disclosed herein includes a main body housing with an air intake and an air outlet. The main body housing includes: a gas-liquid contact section that allows air to contact water containing hypochlorous acid; an air duct that connects the air intake and the air outlet via the gas-liquid contact section; an air supply device that discharges air passing through the air duct to the outside of the main body housing; an electrolytic cell that electrochemically treats water to generate hypochlorous acid; a water supply zone that stores water; a sterilization zone having the gas-liquid contact section; a first conveying section that supplies water from the water supply zone to the electrolytic cell; a second conveying section that supplies water containing hypochlorous acid from the electrolytic cell to the sterilization zone; a control section that controls the air supply device, the first conveying section, and the second conveying section; and a water supply section that stops supplying water when the water level in the water supply zone reaches a predetermined level. The water supply zone and the sterilization zone are housed within a water storage container. The water storage container has a first guide section, which is configured to guide water in the sterilization zone to the water supply zone when the water level in the sterilization zone reaches or exceeds a specified level.

[0009] This disclosure provides an air purification device that can exert stable sterilization performance and prevent water leakage to the outside of the main body shell. Attached Figure Description

[0010] Figure 1 This is a perspective view of an air purification device according to Embodiment 1 of this disclosure.

[0011] Figure 2 This is a 3D view showing the air purifier with its door open.

[0012] Figure 3 This is a cross-sectional view showing the structure of the air purification device.

[0013] Figure 4 This is a three-dimensional view of the water storage section of the air purification device.

[0014] Figure 5 This is a three-dimensional diagram showing the internal structure of the air purification device.

[0015] Figure 6 This is a three-dimensional view of the water storage section of the air purification device.

[0016] Figure 7 This is a top view of the water storage section of the air purification device.

[0017] Figure 8 This is a top view of the water storage section of the air purification device.

[0018] Figure 9 This is a 3D view of the water supply section of the air purification device.

[0019] Figure 10 This is a 3D view of the electrolytic cell of the air purification device.

[0020] Figure 11This is a 3D view of the electrolytic cell of the air purification device.

[0021] Figure 12 This is a cross-sectional view of the electrolytic cell of the air purification device.

[0022] Figure 13 This is a 3D view of the tablet dispensing mechanism of the air purification device.

[0023] Figure 14 This is a three-dimensional view showing the tablet dispensing compartment of the tablet dispensing mechanism of the air purification device.

[0024] Figure 15 This is a three-dimensional view of the water storage section of the air purification device.

[0025] Figure 16 This is a cross-sectional view of the water storage section of the air purification device.

[0026] Figure 17 This is a cross-sectional view of the water storage section of the air purification device according to Embodiment 2 of this disclosure. Detailed Implementation

[0027] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0028] (Implementation Method 1)

[0029] Figure 1 and Figure 2 This is a perspective view of the air purification device 100 according to Embodiment 1 of this disclosure.

[0030] in, Figure 1 This is a three-dimensional view of the air purifier 100 viewed from the front side. Figure 2 This is a perspective view of the air purification device 100 with the door open and the water storage section 16 removed, viewed from the front side. Figure 3 This is a cross-sectional view of the air purification device 100 of Embodiment 1 viewed from the side.

[0031] In addition, the following will sometimes be as follows Figure 1 In the state shown where the air purifier 100 is set up (hereinafter also referred to as the "setting state"), the vertical direction is referred to as the up-down direction, and the horizontal direction is referred to as the left-right direction. In addition, in the setting state of the air purifier 100, the side of the air purifier 100 with the door 3 is referred to as the "front", the side of the air purifier 100 opposite to the front is referred to as the "back", the right side viewed from the front side of the air purifier 100 is referred to as the "right side", and the left side is referred to as the "left side".

[0032] The detailed structure of the air purification device 100 is described below. Figure 1As shown, the air purification device 100 of this embodiment has a main body shell 1 with a generally box-shaped form. Approximately quadrilateral air intakes 2 are provided on both sides of the main body shell 1. An openable and closable door 3 is provided on the front of the main body shell 1. By opening the door 3, the air purification unit 7 (see reference 1) inside the main body shell 1 can be removed. Figure 3 It is part of the main body shell 1. An openable and closable blow-out port 4 is provided on the top surface of the main body shell 1.

[0033] like Figure 2 and Figure 3 As shown, a partition plate 5, a fan 6, an air purification unit 7, an air duct 8, and a control unit 9 are provided inside the main shell 1.

[0034] The partition plate 5 is a plate located in the center of the main shell 1, and is connected to the partition wall 24 described later (see reference). Figure 4 Together, they separate the front and back sides of the main body shell 1. Here, the back side of the main body shell 1, separated by the partition plate 5, is the air passage 8.

[0035] The fan 6 draws air into the main body housing 1 through the air intake 2 and blows the drawn air out through the air outlet 4. The fan 6 is located in the center of the main body housing 1 and includes a motor part 10, a fan part 11 that rotates through the motor part 10, and a housing part 12 that surrounds the motor part 10 and the fan part 11.

[0036] In this embodiment, the operation of the fan 6 is determined by the operating part 1A provided in the main body shell 1. For example... Figure 1 , Figure 2 and Figure 3 As shown, the operation unit 1A is covered by an openable cover 1B located on the top surface of the main body housing 1. The user of the air purifier 100 of this disclosure can adjust the airflow of the fan 6 in stages by operating the airflow switching button (not shown) located on the operation unit 1A. Information from the user's operation is sent as an input signal to the control unit 9.

[0037] The fan unit 11 is fixed to the motor shaft 13, which extends horizontally from the motor unit 10. The fan unit 11 is, for example, a Sirocco fan.

[0038] The motor unit 10 is fixed to the housing unit 12. An outlet 14 is provided on the upper surface of the main body shell 1 of the housing unit 12. An inlet 15 is provided on the back side of the main body shell 1 of the housing unit 12.

[0039] Figure 4 This is a perspective view of the air purification device 100 of Embodiment 1 with its water storage container 21 disposed inside the main body shell 1. Figure 5 It is a perspective view showing the internal structure of the air purification device 100 of Embodiment 1 with some of its constituent parts removed. Figure 6This is a perspective view of the water storage section 16 of the air purification device 100 according to Embodiment 1.

[0040] like Figures 2 to 6 As shown, the air purification unit 7 is a device that stores water from the water supply unit 22 in an electrolytic cell 34, and adds an electrolysis promoting tablet to the water in the electrolytic cell 34 through a tablet dispensing mechanism 35, and performs electrolysis to generate water containing hypochlorous acid. The generated water containing hypochlorous acid comes into contact with the air drawn into the main body shell 1 from the air intake 2 by the fan 6 and is then released from the blow outlet 4.

[0041] The air purification unit 7 includes a water storage section 16, an electrolysis section 17, a first conveying section 18, a second conveying section 19, and a third conveying section 20.

[0042] The water storage section 16 stores water and performs sterilization. The water storage section 16 has a water storage container 21, a water supply section 22, and a gas-liquid contact section 23.

[0043] Figure 7 This is a top view of the water storage section 16 of the air purification device 100 according to Embodiment 1. Figure 8 This is a top view showing the internal structure of the air purification device 100 of Embodiment 1, with part of the water storage section 16 removed.

[0044] like Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the water storage container 21 is located at the lower part of the main shell 1 and has a box shape with an open top surface, thus forming a structure capable of storing water. The water storage container 21 has a partition wall 24, a water supply area 25, and a sterilization area 26.

[0045] like Figure 4 As shown, the partition wall 24 is a plate within the water storage container 21 that separates the front side (outside the air passage 8) of the main body shell 1 from the back side (air passage 8) of the main body shell 1. The partition wall 24 extends upward from the bottom surface of the water storage container 21. The upper end of the partition wall 24 is positioned above the upper end of the water storage container 21. Furthermore, a portion of the upper end of the partition wall 24 makes surface contact with the wall surface of the partition plate 5. Thus, the front side (outside the air passage 8) of the main body shell 1 and the back side (air passage 8) of the main body shell 1 are separated in a manner that prevents air from entering or exiting each other.

[0046] The water supply zone 25 is roughly bowl-shaped and is a partition for storing water supplied from the water supply unit 22. The water supply zone 25 is located on the front side of the main body shell 1, within the water storage container 21 disposed at the lower part of the main body shell 1, compared to the partition wall 24. Furthermore, the water supply zone 25 has a structure capable of holding the water supply unit 22. At the bottom of the water supply zone 25, a cylindrical protrusion 27 is provided at the position where the water supply unit 22 is held.

[0047] The sterilization zone 26 is roughly bowl-shaped and is a partition for storing water containing hypochlorous acid at a specified concentration. The sterilization zone 26 is arranged across the front and back sides of the partition wall 24, and is connected to the front and back sides of the partition wall 24 through an opening (not shown) located below the water surface of the partition wall 24. The sterilization zone 26 has a first water level detection unit 28 and a second water level detection unit 29 for detecting the water level in the sterilization zone 26.

[0048] The first water level detection unit 28 detects situations where the water level in the sterilization zone 26 becomes lower than the target water level. The target water level refers to the maximum water level set for each component during the air purification operation of the air purification device 100 of this disclosure. The water level shortage refers to the minimum water level set for each component during the air purification operation of the air purification device 100 of this disclosure.

[0049] The first water level detection unit 28 includes a first float portion 28a with buoyancy located on the back side of the partition wall 24 in the sterilization zone 26, and a first detection sensor (not shown) for detecting the position of the first float portion 28a. The first float portion 28a is disposed within the sterilization zone 26. The first detection sensor is embedded in the wall of the main body shell 1 near the first float portion 28a. When the water level in the sterilization zone 26 decreases below the water shortage level, the first detection sensor can no longer detect the first float portion 28a due to the resulting floating of the first float portion 28a. At this time, the first detection sensor sends a signal to the control unit 9 indicating that the water level in the sterilization zone 26 is below the water shortage level.

[0050] The second water level detection unit 29 detects that the water level in the sterilization zone 26 has reached the target water level. The second water level detection unit 29 includes a buoyant second float portion 29a located on the front side of the partition wall 24 in the sterilization zone 26, and a second detection sensor (not shown) that detects the position of the second float portion 29a. The second float portion 29a is disposed within the sterilization zone 26. The second detection sensor is embedded in the wall of the main body shell 1 near the second float portion 29a. When the water level in the sterilization zone 26 rises and reaches the target water level, the second detection sensor detects the second float portion 29a due to its subsequent floating. At this time, the second detection sensor sends a signal to the control unit 9 indicating that the water level in the sterilization zone 26 has reached the target water level.

[0051] Figure 9 This is a perspective view of the water supply section 22 of the air purification device 100 according to Embodiment 1.

[0052] like Figure 2 and Figure 9As shown, the water supply unit 22 is installed in the water supply area 25 and is designed to be detachable from the water supply area 25, automatically supplying water in a manner that keeps the water level in the water supply area 25 constant. The water supply unit 22 has a hollow water tank (container) 30 for storing water and a handle 30a provided on the upper part of the water tank 30. The handle 30a is integrated with the water tank 30. Therefore, the user can detach and install the water supply unit 22 in the water supply area 25 while holding the handle 30a.

[0053] The water tank 30 has a circular opening (not shown) at the center of its bottom surface when installed in the water supply area 25. The opening of the water tank 30 is a cylindrical shape extending vertically along its central axis, and is configured to be sealed by a cover 31 that can be detached from the outer periphery of the opening.

[0054] The cover 31 is a cylindrical shape extending vertically along its central axis. When installed in the water storage container 21, a cylindrical opening 31a is provided at the center of the bottom surface of the cover 31, opening vertically. A valve 31b is provided in the opening 31a to open and close the cover.

[0055] The valve plug 31b includes a cylindrical shaft (not shown), an on / off valve (not shown) disposed at one end of the shaft in such a way as to close the cover opening 31a, a helical spring (not shown) disposed in such a way that the shaft can pass through its center, and a spring stop portion (not shown) disposed at the other end of the shaft.

[0056] When the water tank 30 is positioned in the water supply zone 25, the spring stop portion contacts the protrusion 27 of the water supply zone 25. Consequently, the spring stop portion moves upward while compressing the spring. The valve of the valve plug 31b moves upward accordingly, and the valve exits through the cover opening 31a of the cover 31. Thus, water from the water tank 30 flows into the water supply zone 25 through the cover opening 31a of the cover 31.

[0057] Here, when water accumulates in the water supply zone 25 up to the lower end of the cover opening 31a, air will not enter the water tank 30 from the lower end of the cover opening 31a. Therefore, water in the water tank 30 will not flow into the water supply zone 25. That is, when the water in the water supply zone 25 decreases, the water level will increase to the lower end of the cover opening 31a, where the water level remains constant. Therefore, a constant water level can always be maintained in the water supply zone 25.

[0058] like Figure 6 and Figure 7 As shown, the gas-liquid contact section 23 is located on the back side of the partition wall 24 in the sterilization zone 26, and is a component that allows the water stored in the sterilization zone 26 to come into contact with the indoor air drawn into the main body housing 1 by the fan 6. The gas-liquid contact section 23 includes a filter 32, a filter frame 33, and a drive unit (not shown).

[0059] The filter 32 is water-retaining and cylindrical in shape, with holes on its circumference to allow air to pass through. The filter 32 is mounted on the filter frame 33 with one end immersed in the water in the sterilization zone 26.

[0060] The filter frame 33 is rotatably supported by a bearing (not shown) provided in the water storage container 21. The filter 32 and the filter frame 33 are configured to rotate via a drive unit.

[0061] Figure 10 This is a perspective view of the electrolytic cell 34 of the air purification device 100 according to Embodiment 1. Figure 11 It is a perspective view showing the internal structure of the air purification device 100 of Embodiment 1 without a portion of the constituent components of the electrolytic cell 34. Figure 12 This is a cross-sectional view of the electrolytic cell 34 of the air purification device 100 in Embodiment 1, viewed from the side.

[0062] like Figure 10 , Figure 11 and Figure 12 As shown, the electrolysis unit 17 electrolyzes the water in the electrolysis cell 34 to generate water containing hypochlorous acid.

[0063] Electrolysis section 17 includes an electrolytic cell 34 and a tablet dispensing mechanism 35 (see reference). Figure 2 ) and electrolysis unit 36.

[0064] The electrolytic cell 34 is disposed above the water storage container 21 and has a generally box-shaped form with an open top. The electrolytic cell 34 stores water supplied from the water storage section 16 by the first conveying section 18. The electrolytic cell 34 has a third water level detection section 37 and a fourth water level detection section 38 for detecting the water level in the electrolytic cell 34.

[0065] The third water level detection unit 37 detects whether the water level in the electrolytic cell 34 is above or below the water shortage level. The third water level detection unit 37 includes a third float portion 37a with buoyancy and a third detection sensor (not shown) that detects the position of the third float portion 37a. The third float portion 37a is disposed in the electrolytic cell 34. The third detection sensor is embedded in the wall of the main body shell 1 near the third float portion 37a. When the water level in the electrolytic cell 34 rises from below the water shortage level to reach the water shortage level, the third detection sensor can detect the third float portion 37a due to the resulting float movement. At this time, the third detection sensor sends a signal to the control unit 9 indicating that the water level in the electrolytic cell 34 has reached above the water shortage level. Conversely, when the water level in the electrolytic cell 34 decreases below the water shortage level, the third detection sensor can no longer detect the third float portion 37a due to the resulting float movement. At this time, the third detection sensor sends a signal to the control unit 9 indicating that the water level in the electrolytic cell 34 is lower than the water shortage level.

[0066] The fourth water level detection unit 38 detects that the water level in the electrolytic cell 34 has reached the target water level. The fourth water level detection unit 38 includes a fourth float portion 38a with buoyancy, and a fourth detection sensor (not shown) that detects the position of the fourth float portion 38a. The fourth float portion 38a is disposed in the electrolytic cell 34. The fourth detection sensor is embedded in the wall of the main body shell 1 near the fourth float portion 38a. When the water level in the electrolytic cell 34 rises and reaches the target water level, the fourth detection sensor can detect the floating of the fourth float portion 38a. At this time, the fourth detection sensor sends a signal to the control unit 9 indicating that the water level in the electrolytic cell 34 has reached the target water level.

[0067] Figure 13 This is a perspective view of the tablet dispensing mechanism 35 of the air purification device 100 according to Embodiment 1. Figure 14 This is a perspective view showing the tablet dispensing box 39 of the tablet dispensing mechanism 35 of the air purification device 100 according to Embodiment 1.

[0068] like Figure 13 and Figure 14As shown, the tablet dispensing mechanism 35 is positioned above the electrolytic cell 34. The tablet dispensing mechanism 35 includes: a tablet dispensing box 39, a tablet dispensing component 40 disposed within the tablet dispensing box 39, a tablet dispensing cover 41 detachably disposed on the upper part of the tablet dispensing box 39, and a dispensing motor for rotating the tablet dispensing component 40. When the tablet dispensing cover 41 is removed from the tablet dispensing box 39 and an electrolysis accelerator tablet 42 is placed inside the tablet dispensing box 39, the tablet dispensing component 40 is rotated by the dispensing motor. The dispensing motor rotates the tablet dispensing component 40 at predetermined intervals via a control unit 9. As a result, the electrolysis accelerator tablet 42 automatically falls from the opening 39a on the bottom surface of the tablet dispensing box 39 into the electrolytic cell 34. For example, sodium chloride can be used as the electrolysis accelerator tablet 42.

[0069] Electrolysis unit 36 ​​immerses the first electrode (not shown) and the second electrode (not shown) in water in electrolysis tank 34. A voltage is applied to these electrodes to electrochemically treat the water in electrolysis tank 34 containing an electrolysis-promoting tablet 42 dispensed by tablet dispensing mechanism 35, generating hypochlorous acid. An example of the electrolysis-promoting tablet 42 is sodium chloride. Electrolysis unit 36 ​​electrochemically electrolyzes the sodium chloride aqueous solution to generate electrolyzed water containing active oxygen (hypochlorous acid, in this embodiment, for example).

[0070] Here, reactive oxygen species (ROS) refer to oxygen molecules and related substances that have higher oxidizing activity than ordinary oxygen. For example, ROS include not only so-called narrowly defined ROS such as superoxide anions, singlet oxygen, hydroxyl radicals, or hydrogen peroxide, but also so-called broadly defined ROS such as ozone and hypochlorous acid (hypohalic acid). Furthermore, in this embodiment, the generation of electrolyzed water containing ROS (hypochlorous acid in this case) is sometimes expressed as the generation of ROS (hypochlorous acid in this case).

[0071] like Figure 4 and Figure 5 As shown, the first conveying unit 18 conveys water from the water storage unit 16 to the electrolysis unit 17. (As indicated...) Figure 6 As shown, for example, the first conveying unit 18 has a first pump 43 that is installed in a manner that is immersed in water in the water supply area 25 and a first conveying water passage 44 connected to the first pump 43.

[0072] The first pump 43 is a suction pump that moves the water supplied from the water supply section 22 to the water supply area 25 to the first water delivery path 44 and delivers it to the electrolytic cell 34.

[0073] The first water conveying channel 44 is a cylindrical pipe with openings at both ends. One end of the opening of the first water conveying channel 44 is connected to the first pump 43, and the other end of the opening of the first water conveying channel 44 is located above the top surface of the electrolytic cell 34.

[0074] like Figure 4 , Figure 5 , Figure 11 and Figure 12 As shown, the second conveying unit 19 conveys water from the electrolysis unit 17 to the water storage unit 16. The second conveying unit 19 includes: a second pump 45 installed in a manner that is immersed in the water of the electrolysis cell 34, a second pre-stage water conveying passage 46 connected to the second pump 45, a supply tank 47 installed inside the electrolysis cell 34, and a second post-stage water conveying passage 48 connected to the supply tank 47.

[0075] The second pump 45 is a suction pump that moves the water that has undergone electrochemical treatment in the electrolyzer 34 to the second pre-stage water delivery path 46 and delivers it to the supply tank 47.

[0076] The second pre-stage water delivery passage 46 is a cylindrical pipe with openings at both ends. One end of the opening of the second pre-stage water delivery passage 46 is connected to the second pump 45, and the other end of the opening of the second pre-stage water delivery passage 46 is connected to the connection port 49 of the supply tank 47 (described later).

[0077] The supply tank 47 is roughly bowl-shaped with an opening on its top surface and is located inside the electrolytic cell 34. A connection port 49 for connecting to the second pre-stage water supply channel 46 is provided on the side of the supply tank 47. A drop opening 50 is provided on the bottom surface of the supply tank 47. The upper end of the supply tank 47 is lower than the upper end of the electrolytic cell 34.

[0078] The connection port 49 is located on a part of the side of the supply tank 47 and is circular in shape with the same outer diameter as the second pre-stage water conveying channel 46.

[0079] The opening 50 is provided so as to penetrate the bottom surface of the supply groove 47 and is circular in shape with a specified diameter.

[0080] The second post-stage water conveying channel 48 is a cylindrical pipe with openings at both ends. One end of the opening of the second post-stage water conveying channel 48 is connected to the drop opening 50, and the other end of the opening of the second post-stage water conveying channel 48 is located above the sterilization zone 26.

[0081] like Figure 6 and Figure 7 As shown, the third conveying unit 20 conveys water from the water supply zone 25 to the sterilization zone 26. The third conveying unit 20 has a third pump 51 that is installed in the water of the water supply zone 25 and a third conveying water passage 52 connected to the third pump 51.

[0082] The third pump 51 is a suction pump that moves the water supplied from the water supply section 22 to the water supply area 25 to the third water delivery path 52 and delivers it to the sterilization area 26.

[0083] The third water delivery path 52 is a cylindrical pipe with openings at both ends. One end of the opening of the third water delivery path 52 is connected to the third pump 51, and the other end of the opening of the third water delivery path 52 is located directly above the water surface on the front side of the partition wall 24 of the sterilization zone 26.

[0084] That is, the main body shell 1 has a third conveying section 20 that conveys water from the water supply area 25 to the sterilization area 26.

[0085] Therefore, water containing hypochlorous acid supplied from electrolyzer 34 and water in water supply zone 25 can be mixed in any proportion. Thus, the concentration of hypochlorous acid in sterilization zone 26 can be adjusted to a specified concentration.

[0086] like Figure 3 As shown, the air passage 8 connects the air intake 2 and the air outlet 4. In the air passage 8, the gas-liquid contact part 23, the fan 6, and the air outlet 4 are arranged sequentially from the air intake 2. When the fan part 11 is rotated by the motor part 10, the external air that enters the air passage 8 from the air intake 2 passes through the gas-liquid contact part 23 and the fan 6 and is blown out from the air outlet 4.

[0087] The control unit 9 is housed within the main casing 1. The control unit 9 receives signals from the first water level detection unit 28, the second water level detection unit 29, the third water level detection unit 37, the fourth water level detection unit 38, and the operation unit 1A. Furthermore, the control unit 9 controls the operation of the electrolysis unit 36, the first conveying unit 18, the second conveying unit 19, the third conveying unit 20, and the tablet dispensing mechanism 35. As a result, the control unit 9 adjusts the concentration and volume of hypochlorous acid-containing water in the sterilization zone 26. Additionally, the control unit 9 can estimate the hypochlorous acid consumption and the reduction in the volume of hypochlorous acid-containing water in the sterilization zone 26 based on the signal indicating the airflow of the blower 6 received from the operation unit 1A.

[0088] An example of adjusting the concentration and volume of hypochlorous acid-containing water in the sterilization zone 26 of the device with the above structure will be described.

[0089] When the control unit 9 detects through the third water level detection unit 37 that the water level in the electrolyzer 34 is lower than the water shortage level, it activates the first pump 43 to start supplying water from the water supply area 25 to the electrolyzer 34 via the first water supply path 44.

[0090] Next, when the third water level detection unit 37 detects that the water level has risen to the water shortage level, the control unit 9 activates the tablet dispensing mechanism 35 to dispense the electrolysis promoting tablet 42 into the electrolysis cell 34.

[0091] Next, as the water level in the electrolytic cell 34 rises further, and the fourth water level detection unit 38 detects that the water level has risen to the target level, the control unit 9 stops the operation of the first pump 43.

[0092] Next, the control unit 9 starts the operation of the electrolysis unit 36 ​​and stops the operation of the electrolysis unit 36 ​​after a predetermined time. Thus, water containing hypochlorous acid of a certain concentration is generated and held in the electrolysis cell 34.

[0093] When the control unit 9 infers from the signal indicating the air volume of the fan 6 sent from the operation unit 1A that the hypochlorous acid in the sterilization zone 26 has been consumed in a specified amount, it activates the second pump 45 and begins to supply water containing hypochlorous acid from the electrolysis cell 34 to the supply tank 47 via the second pre-stage water supply path 46.

[0094] After a predetermined time, the control unit 9 stops the operation of the second pump 45. The hypochlorous acid-containing water supplied to the supply tank 47 gradually moves through the drop opening 50 to the second post-stage water supply path 48, and is then supplied to the sterilization zone 26 via the second post-stage water supply path 48.

[0095] When the control unit 9 deduces that the water volume in the sterilization zone 26 has decreased by a predetermined amount based on the signal indicating the air volume of the fan 6 received from the operation unit 1A, it activates the third pump 51 to start supplying water from the water supply zone 25 to the sterilization zone 26.

[0096] When the second water level detection unit 29 detects that the water level has risen to the target water level, the control unit 9 stops the operation of the third pump 51. At this time, the water containing hypochlorous acid delivered from the second delivery unit 19 is mixed with the water delivered from the third delivery unit 20, and the concentration of hypochlorous acid in the sterilization zone 26 is adjusted to the prescribed concentration.

[0097] Through these controls, the water volume and concentration of hypochlorous acid within a predetermined range can be maintained in the sterilization zone 26. This allows for the provision of an air purification device that exhibits stable sterilization performance.

[0098] Figure 15 This is a perspective view of the water storage section 16 of the air purification device 100 according to Embodiment 1. Figure 16 This is a cross-sectional view of the water storage section 16 of the air purification device 100 according to Embodiment 1.

[0099] like Figure 15 and Figure 16 As shown, a first guide section 53 is provided on the partition wall 24 at a position higher than the target water level of the sterilization zone 26.

[0100] When the water level in the sterilization zone 26 exceeds the target water level and the water surface reaches the specified water level, the first guide unit 53 guides water from the sterilization zone 26 to the water supply zone 25. That is, the first guide unit 53 guides water from the sterilization zone 26 to the water supply zone 25 when the water level in the water storage container 21 is above the specified water level.

[0101] Furthermore, the first guide section 53 can guide the water in the sterilization zone 26 to the water supply zone 25 as long as the water level in the sterilization zone 26 is above the specified water level, and its shape is not limited.

[0102] The feature of this embodiment is that it has a water supply unit 22 that stops water supply when the water level in the water supply zone 25 reaches a predetermined water level, the water supply zone 25 and the sterilization zone 26 are provided in the water storage container 21, and includes a first guide unit 53 that guides water in the sterilization zone 26 to the water supply zone 25 when the water level in the sterilization zone 26 reaches or exceeds the predetermined water level.

[0103] In the control described in this disclosure, it is conceivable that the control unit 9 may malfunction or the conveying unit itself may malfunction, causing the first conveying unit 18 and the second conveying unit 19 to operate continuously instead of stopping. That is, it is conceivable that the control unit 9 conveys a predetermined amount of water from the water supply zone 25 to the electrolyzer 34 via the first conveying unit 18 before the water in the electrolyzer 34 falls below a predetermined amount, and conveys a predetermined amount of water containing hypochlorous acid from the electrolyzer 34 to the sterilization zone 26 via the second conveying unit 19 before the water containing hypochlorous acid in the sterilization zone 26 falls below a predetermined amount.

[0104] Here, in the absence of the first guide section 53 that directs water from the sterilization zone 26 to the water supply zone 25, a predetermined amount of water in the water supply zone 25 is transported to the electrolyzer 34 via the first conveying section 18. Therefore, the water level in the water supply zone 25 is lower than the predetermined level, and the water supply from the water supply section 22 does not stop. That is, water newly supplied from the water supply section 22 to the water supply zone 25 is transported to the sterilization zone 26 via the first conveying section 18 and the second conveying section 19, thus water continuously overflows from the sterilization zone 26.

[0105] Specifically, while these deliveries are ongoing, since the water supply zone 25 is equipped with a water tank 30 that automatically supplies water before the water level reaches the lower end of the lid opening 31a, water is continuously supplied to the water supply zone 25 as long as the water level in the sterilization zone 26 remains lower than the lower end of the lid opening 31a. The water level in the sterilization zone 26 then rises and overflows. Furthermore, the volume of the water tank 30 is larger than the overall volume of the water storage container 21.

[0106] On the other hand, if the water storage container 21 is equipped with a first guide section 53 that guides water from the sterilization zone 26 to the water supply zone 25 when the water level in the sterilization zone 26 reaches a predetermined level, the water in the sterilization zone 26 will be guided to the water supply zone 25 by the first guide section 53. As a result, the water level in the water supply zone 25 rises to the predetermined level, and water supply from the water supply section 22 to the water supply zone 25 stops. That is, no new water will be supplied from the water supply section 22 to the water supply zone 25. Therefore, a certain amount of water is transported through the first conveying section 18 and the second conveying section 19 in a manner that circulates within the water supply zone 25, the electrolytic cell 34, and the sterilization zone 26, thus preventing water from overflowing from the sterilization zone 26.

[0107] Specifically, when the water level in the sterilization zone 26 reaches a predetermined level, the water in the sterilization zone 26 is guided by the first guide section 53 to the water supply zone 25, causing the water level in the water supply zone 25 to rise. When the water level in the water supply zone 25 rises to the lower end of the lid opening 31a of the water tank 30, the water tank 30 is sealed by the water surface, the water supply from the water supply section 22 stops, and the rise in the overall water level of the water storage container 21 stops. This prevents water from continuously overflowing from the water storage container 21. Therefore, an air purification device that provides stable sterilization performance and prevents water leakage to the main body shell 1 can be provided.

[0108] In addition, the supply groove 47 and the drop opening 50 in this embodiment serve as the second guide part 54 (see reference). Figure 10 , Figure 12 The second guide section 54 guides the water when the water level in the electrolytic cell 34 is higher than the specified water level, so that the water containing hypochlorous acid in the electrolytic cell 34 flows into the second post-stage water conveying channel 48, which is part of the second conveying section 19.

[0109] That is, the second conveying unit 19 has a second downstream water conveying channel 48 that connects the electrolyzer 34 to the sterilization zone 26. The electrolyzer 34 has a second guiding section 54, which is positioned above the sterilization zone 26. When the water level in the electrolyzer 34 is higher than a predetermined water level, the guiding section 54 guides the water so that the hypochlorous acid-containing water in the electrolyzer 34 flows into the second downstream water conveying channel 48.

[0110] In the control disclosed herein, it is conceivable that the control unit 9 may perform an abnormal operation or the first conveying unit 18 itself may malfunction, causing the first conveying unit 18 to continue conveying water even after the water level in the electrolytic cell 34 has reached the target water level.

[0111] If the first conveying unit 18 malfunctions and water continues to be conveyed, the water level in the electrolyzer 34 will continue to rise after exceeding the target water level, but will be guided by the second guide unit 54 and flow into the second downstream water conveying channel 48. Specifically, the supply tank 47 is a roughly bowl-shaped tank with an open top and is located inside the electrolyzer 34. A drop opening 50 is provided on the bottom surface of the supply tank 47. When the rising water level in the electrolyzer 34 reaches the upper end of the supply tank 47, water flows into the supply tank 47 without passing through the second upstream water conveying channel 46, and moves through the drop opening 50 to the second downstream water conveying channel 48, and is conveyed to the sterilization zone 26.

[0112] While these water transfers continue, since the water supply zone 25 is equipped with a water tank 30 that automatically supplies water before the water level reaches the lower end of the lid opening 31a, water is continuously supplied to the water supply zone 25 as long as the water level in the sterilization zone 26 remains lower than the lower end of the lid opening 31a. The water level in the sterilization zone 26 then continuously rises. Furthermore, the volume of the water tank 30 is larger than the overall volume of the water storage container 21.

[0113] When the water level in the sterilization zone 26 reaches the specified level, the water in the sterilization zone 26 is guided by the first guide section 53 to the water supply zone 25, causing the water level in the water supply zone 25 to rise. When the water level in the water supply zone 25 rises to the lower end of the lid opening 31a of the water tank 30, the water tank 30 is sealed by the water surface, the water supply from the water supply section 22 stops, and the rise in the overall water level of the water storage container 21 stops. This prevents water from continuously overflowing from the water storage container 21. Therefore, an air purification device that provides stable sterilization performance and prevents water leakage to the exterior of the main body shell 1 can be provided.

[0114] In addition, the preferred water storage container 21 has a volume that can maintain the target water level of the water supply zone 25, the target water level of the sterilization zone 26, and the target water level of the electrolysis cell 34.

[0115] In the control described in this disclosure, it is conceivable that the control unit 9 may malfunction or the second conveying unit 19 may experience an abnormal operation, causing the second conveying unit 19 to continue conveying water even after the water level in the sterilization zone 26 has reached the target water level. Furthermore, in the event of this malfunction, the water level in the water storage container 21 will be at its highest.

[0116] While the second conveying section 19 continues to convey water, the water level in the sterilization zone 26 continues to rise above the target water level. When the water level in the sterilization zone 26 reaches the predetermined water level, the water in the sterilization zone 26 is guided by the first guiding section 53 to the water supply zone 25, causing the water level in the water supply zone 25 to rise. The water storage container 21 has a volume capable of maintaining the target water level in the water supply zone 25, the target water level in the sterilization zone 26, and the target water level in the electrolyzer 34. Therefore, even if all the hypochlorous acid-containing water in the electrolyzer 34 is conveyed to the sterilization zone 26 by the second conveying section 19, the water will not overflow from the water storage container 21. Thus, water overflow from the water storage container 21 can be prevented. Therefore, an air purification device that can perform stable sterilization and prevent water leakage to the outside of the main body shell 1 can be provided.

[0117] Furthermore, in the control disclosed herein, it is conceivable that the control unit 9 may perform an abnormal operation or the third conveying unit 20 itself may malfunction, causing the third conveying unit 20 to continue conveying water even after the water level in the sterilization zone 26 has reached the target water level.

[0118] The third conveying unit 20 is used to convey water from the water supply zone 25 to the sterilization zone 26, and mixes the hypochlorous acid-containing water conveyed from the electrolyzer 34 via the second conveying unit 19 with the water in the water supply zone 25 in any proportion. This allows the concentration of hypochlorous acid in the sterilization zone 26 to be adjusted to a predetermined concentration.

[0119] While these water transfers continue, since the water supply zone 25 is equipped with a water tank 30 that automatically supplies water before the water level reaches the lower end of the cap opening 31a, water is continuously supplied to the water supply zone 25 as long as the water level in the sterilization zone 26 remains lower than the lower end of the cap opening 31a, causing the water level in the sterilization zone 26 to rise continuously. Furthermore, the volume of the water tank 30 is larger than the overall volume of the water storage container 21. When the rising water level in the sterilization zone 26 reaches a predetermined level, the water in the sterilization zone 26 is guided to the water supply zone 25 by the first guide section 53, causing the water level in the water supply zone 25 to rise. When the water level in the water supply zone 25 rises to the lower end of the cap opening 31a of the water tank 30, the water tank 30 is sealed by the water surface, the water supply from the water supply section 22 stops, and the rise in the overall water level of the water storage container 21 stops. This prevents water from continuously overflowing from the water storage container 21. Therefore, an air purification device that provides stable sterilization performance and prevents water leakage to the main body casing 1 can be provided.

[0120] Even if the first guide section 53 is merely an opening (not shown) positioned higher than the target water level in the sterilization zone 26 of the partition wall 24 and lower than the water level from which water would overflow from the sterilization zone 26, it is sufficient to guide water from the sterilization zone 26 to the water supply zone 25. However, in this case, since the air passage 8 is connected to the outside of the air passage 8 via the opening, when the fan section 11 stops, the gaseous hypochlorous acid volatilized in the sterilization zone 26 within the air passage 8 will move through the opening to the water supply zone 25 outside the air passage 8 and dissolve in the water in the water supply zone. In this case, the concentration of hypochlorous acid-containing water generated in the electrolyzer will be incorrect. As a result, the air purification performance of the air purification device in this embodiment may be unstable.

[0121] For the reasons stated above, the first guide section 53 is cylindrical in shape and is disposed on the partition wall 24 in a manner that connects the sterilization zone 26 and the water supply zone 25. The opening 55 on one side (water supply zone side) of the first guide section 53 (see reference) Figure 11 , Figure 16 The edge of the first guide section 53 is immersed in the water stored in the water supply area 25. The opening 56 on the other side (sterilization zone side) of the first guide section 53 (see reference) Figure 15 , Figure 16 The edge of the first guide section 53 extends upward relative to the water surface of the water stored in the water storage container 21. A portion of the edge of the opening 56 on the other side of the first guide section 53 is set lower than the height of the water level that will overflow from the sterilization zone 26.

[0122] Preferably, when the water level in the sterilization zone 26 reaches a predetermined level that is higher than the target water level of the sterilization zone 26 but lower than the height at which water would overflow from the sterilization zone 26, water entering from the opening 56 on the other side (sterilization zone side) of the first guide portion 53 flows to the opening 55 on one side (water supply zone side) of the first guide portion 53. The highest point of the lower surface of the inner circumferential surface of the first guide portion 53 is preferably positioned at a level higher than the target water level of the sterilization zone 26 but lower than the height at which water would overflow from the sterilization zone 26. Here, the lower surface of the inner circumferential surface of the first guide portion 53 refers to the surface to which water first flows when water begins to flow in the first guide portion 53.

[0123] The guiding action of the first guide section 53 and the airflow within the air passage 8 in this embodiment will be explained.

[0124] If the water level in the sterilization zone 26 continues to rise above the target water level due to a malfunction of the air purification device 100 of this embodiment, when the water level reaches a predetermined level lower than the height at which water would overflow from the sterilization zone 26, water from the sterilization zone 26 that enters the first guide section 53 from the opening 56 on the other side flows into the water supply zone 25 from the opening 55 on one side. That is, the water in the sterilization zone 26 can be guided to the water supply zone 25.

[0125] Furthermore, in this embodiment, a portion of the air passing through the gas-liquid contact section 23 in the air passage 8 can enter the first guide section 53 through the opening 56 on the other side, but the edge of the opening 55 on one side of the first guide section 53 is immersed in the water stored in the water supply area 25. Therefore, air will not enter the air passage 8 from outside. That is, through the partition wall 24, the partition plate 5, the first guide section 53, and the water surface of the water storage container 21, the air passage 8 and the outside of the air passage 8 are separated so that there is no air inflow or outflow between them. As a result, water can be guided from the sterilization area 26 to the water supply area 25 without causing a reduction in air purification performance.

[0126] (Implementation Method 2)

[0127] Figure 17 This is a cross-sectional view of the water storage section 16 of the air purification device 100 according to Embodiment 2. The same reference numerals are used to label the same components as in the air purification device 100 of Embodiment 1, and detailed descriptions of these components are omitted. The difference from Embodiment 1 lies in the position of the opening edge of the first guide section 53.

[0128] The first guide section 53 is a cylindrical shape provided in the partition wall 24 in a manner that connects the sterilization zone 26 and the water supply zone 25. The edge of the opening 57 on one side (sterilization zone side) of the first guide section 53 is immersed in the water stored in the sterilization zone 26. The edge of the opening 58 on the other side (water supply zone side) of the first guide section 53 extends upward relative to the water surface of the water stored in the water storage container 21.

[0129] A portion of the edge of the opening 58 on the other side of the first guide section 53 is set lower than the height of the water level that will overflow from the sterilization zone 26. When the water level in the sterilization zone 26 reaches a predetermined level that is higher than the target water level of the sterilization zone 26 but lower than the height of the water level that will overflow from the sterilization zone 26, water entering from the opening 57 on one side (sterilization zone side) of the first guide section 53 flows to the opening 58 on the other side (water supply zone side) of the first guide section 53. The highest portion of the lower surface of the inner circumferential surface of the first guide section 53 is positioned at a position that is higher than the target water level of the sterilization zone 26 but lower than the height of the water level that will overflow from the sterilization zone 26. Here, the lower surface of the inner circumferential surface of the first guide section 53 refers to the surface that water first flows to when water begins to flow in the first guide section 53.

[0130] The guiding action of the first guide section 53 and the airflow within the air passage 8 in this embodiment will be explained.

[0131] If the water level in the sterilization zone 26 continues to rise above the target water level due to a malfunction of the air purification device 100 of this embodiment, when the water level reaches a predetermined level lower than the level at which water would overflow from the sterilization zone 26, water from the sterilization zone 26 that has entered the first guide section 53 from one side opening 57 as the water level rises flows into the water supply zone 25 from the other side opening 58. In other words, water from the sterilization zone 26 can be guided to the water supply zone 25.

[0132] Furthermore, regarding the air that passes through the gas-liquid contact section 23 in the air passage 8 of this embodiment, the edge of the opening 57 on one side of the first guide section 53 is immersed in the water stored in the sterilization zone 26. Therefore, it will not enter the first guide section 53. That is, through the partition wall 24, the partition plate 5, the first guide section 53, and the water surface of the water storage container 21, the air passage 8 and the outside of the air passage 8 are separated so that there is no air inflow or outflow between them. As a result, water can be guided from the sterilization zone 26 to the water supply zone 25 without causing a reduction in air purification performance.

[0133] Industrial availability

[0134] The air purification device disclosed herein is useful for use in homes, businesses, and other applications.

[0135] Explanation of reference numerals in the attached figures

[0136] 1. Main shell

[0137] 1A Operations Section

[0138] 1B Cover

[0139] 2. Inlet

[0140] 3 doors

[0141] 4. Blowout

[0142] 5. Divider

[0143] 6. Fans

[0144] 7 air purification units

[0145] 8 Wind Path

[0146] 9. Control Department

[0147] 10. Electric Motor Section

[0148] 11. Fan Section

[0149] 12. Shell section

[0150] 13 Motor shaft

[0151] 14 Discharge outlets

[0152] 15 suction port

[0153] 16 Water storage department

[0154] 17 Electrolysis Section

[0155] 18 First Conveying Department

[0156] 19. Second Conveyor Section

[0157] 20 Third Conveyor Section

[0158] 21 water storage container

[0159] 22 Water Supply Department

[0160] 23 Gas-liquid contact area

[0161] 24. Spacer

[0162] 25 Water Supply Area

[0163] 26. Sterilization Area

[0164] 27. Protrusion

[0165] 28. Water Quantity Testing Department No. 1

[0166] 28a First float section

[0167] 29. Second Water Quantity Testing Department

[0168] 29a Second float section

[0169] 30 water tanks

[0170] 30a handle

[0171] 31 Cover

[0172] 31a Lid opening

[0173] 31b Valve Bolt

[0174] 32 Filters

[0175] 33 Filter Box

[0176] 34 Electrolytic Cell

[0177] 35 Tablet dispensing facilities

[0178] 36 Electrolysis Units

[0179] 37. Third Water Quantity Testing Department

[0180] 37a Third float section

[0181] 38. Fourth Water Quantity Testing Department

[0182] 38a Fourth float section

[0183] 39 Tablet Dispenser

[0184] 39a Opening

[0185] 40 Tablet dispensing components

[0186] 41 Tablet Dispensing Cover

[0187] 42 Electrolysis accelerator tablets

[0188] 43 Pump No. 1

[0189] 44 First Water Transport Route

[0190] 45 Pump No. 2

[0191] 46 Second Pre-stage Water Conveying Circuit

[0192] 47 Supply Tank

[0193] 48 Second stage water conveyance circuit

[0194] 49 Connection Port

[0195] 50 drops the opening

[0196] 51 Pump No. 3

[0197] 52 Third Water Transport Route

[0198] 53 First Guiding Section

[0199] 54. Second Guiding Section

[0200] 55 Opening

[0201] 56 Opening

[0202] 57 Opening

[0203] 58 Opening

[0204] 100 Air purification devices.

Claims

1. An air purification device, characterized in that: Includes a main body shell with an air intake and an air outlet. The main shell includes: The gas-liquid contact section allows air to come into contact with water containing hypochlorous acid; The air passage connects the air inlet and the air outlet via the gas-liquid contact portion; An air supply device that discharges air through the air passage to the outside of the main body shell; An electrolytic cell that electrochemically treats water to produce hypochlorous acid; The water supply area, where water is stored; The sterilization zone has the aforementioned gas-liquid contact portion; The first conveying unit conveys water from the water supply area to the electrolytic cell; The second conveying unit conveys water containing hypochlorous acid from the electrolytic cell to the sterilization zone; A control unit that controls the air supply device, the first conveying unit, and the second conveying unit; and The water supply department shall stop supplying water when the water level in the water supply area reaches the prescribed level. The water supply area and the sterilization area are located inside a water storage container. The water storage container has a first guide section, configured to guide water from the sterilization zone to the water supply zone when the water level in the sterilization zone reaches or exceeds a predetermined level. The water storage container has a partition wall that separates the water supply area from the sterilization area. A partition plate is provided inside the main shell, which contacts the partition wall and divides the interior of the main shell into a water supply area and a sterilization area. The first guide section is a cylindrical shape disposed on the partition wall in a manner that connects the sterilization zone and the water supply zone. The edge of one opening in the cylindrical shape of the first guide section is immersed in water stored in the water supply area. The edge of the opening on the other side of the cylindrical shape of the first guide portion extends upward relative to the water surface of the water stored in the water storage container. A portion of the edge of the opening on the other side of the cylindrical shape of the first guide portion is set lower than the height of the water level that would overflow from the sterilization zone. When the water level in the sterilization zone reaches a predetermined level that is higher than the target water level in the sterilization zone but lower than the height at which water would overflow from the sterilization zone, water entering from the opening on the other side of the first guide portion flows toward the opening on the cylindrical side of the first guide portion.

2. An air purification device, characterized in that: Includes a main body shell with an air intake and an air outlet. The main shell includes: The gas-liquid contact section allows air to come into contact with water containing hypochlorous acid; The air passage connects the air inlet and the air outlet via the gas-liquid contact portion; An air supply device that discharges air through the air passage to the outside of the main body shell; An electrolytic cell that electrochemically treats water to produce hypochlorous acid; The water supply area, where water is stored; The sterilization zone has the aforementioned gas-liquid contact portion; The first conveying unit conveys water from the water supply area to the electrolytic cell; The second conveying unit conveys water containing hypochlorous acid from the electrolytic cell to the sterilization zone; A control unit that controls the air supply device, the first conveying unit, and the second conveying unit; and The water supply department shall stop supplying water when the water level in the water supply area reaches the prescribed level. The water supply area and the sterilization area are located inside a water storage container. The water storage container has a first guide section, configured to guide water from the sterilization zone to the water supply zone when the water level in the sterilization zone reaches or exceeds a predetermined level. The water storage container has a partition wall that separates the water supply area from the sterilization area. A partition plate is provided inside the main shell, which contacts the partition wall and divides the interior of the main shell into a water supply area and a sterilization area. The first guide section is a cylindrical shape disposed on the partition wall in a manner that connects the sterilization zone and the water supply zone. The edge of the opening on one side of the cylindrical shape of the first guide portion is immersed in water stored in the sterilization zone. The edge of the opening on the other side of the cylindrical shape of the first guide portion extends upward relative to the water surface of the water stored in the water storage container. A portion of the edge of the opening on the other side of the cylindrical shape of the first guide portion is set lower than the height of the water level that would overflow from the sterilization zone. When the water level in the sterilization zone reaches a predetermined level that is higher than the target water level in the sterilization zone but lower than the height at which water would overflow from the sterilization zone, water entering from the opening on the other side of the first guide portion flows toward the opening on the other side of the cylindrical shape of the first guide portion.

3. The air purification device as described in claim 1 or 2, characterized in that: The main shell also has a second guide section, configured to guide the hypochlorous acid-containing water in the electrolytic cell into the second downstream water conveyance channel when the water level in the electrolytic cell is higher than a specified water level. The second conveying unit has a second downstream water conveying channel that connects the electrolytic cell to the sterilization zone. The electrolytic cell is positioned above the sterilization zone.

4. The air purification device as described in claim 1 or 2, characterized in that: The water storage container has a volume that can maintain the target water level in the water supply area, the target water level in the sterilization area, and the target water level in the electrolytic cell, totaling the water volume.

5. The air purification device as described in claim 1 or 2, characterized in that: The main body shell also has a third conveying section for conveying water from the water supply area to the sterilization area.

Images