Air purification device

Abstract

An air purification device (1) is provided with a main body case (2), an electrolytic tank (31), an electrolysis unit (22), a sterilization tank (32), a gas-liquid contact portion (21), a fan (3), an opening (33), a valve member (34) covering the opening (33), and a moving mechanism (35) for moving the valve member (34). A sterilization tank (32) is disposed below the opening (33), when the valve member (34) is separated from the opening edge of the opening (33) by the moving mechanism (35), the opening (33) is opened, and the water containing the active oxygen species in the electrolytic bath (31) is supplied to the sterilization tank (32), and when the valve member (34) abuts against the opening edge of the opening (33), the opening (33) is closed, and the supply of the water containing the active oxygen species in the electrolytic bath (31) to the sterilization tank (32) is stopped.

Description

Technical Field

[0001] The present invention relates to an air purifier for removing bacteria, fungi, viruses, odors, etc. in the air using electrolyzed water obtained by passing electricity through water. Background Art

[0002] The existing air purification device includes: a main body shell having an air inlet and an air outlet; a water storage container equipped with an electrolysis unit including an electrode for electrochemically treating water; a gas-liquid contact mechanism for retaining water in the water storage container; a fan for conveying air to the gas-liquid contact mechanism; and a water supply mechanism for automatically supplying water in a manner that the water level of the water storage container becomes constant. In such an air purification device, air ventilated from the outside of the main body shell to the inside of the main body is sterilized by the gas-liquid contact mechanism (for example, refer to Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent No. 5994105 Summary of the invention

[0006] In the above-mentioned conventional air purification device, the air ventilated into the main body passes through the gas-liquid contact mechanism, and the scattered matter in the air is captured in the water and accumulated in the water storage container. Since most of the scattered matter accumulated in the water hinders the electrochemical treatment of the electrolytic unit, there is a problem that the amount of hypochlorous acid generated by the electrolytic unit is reduced and the sterilization performance is unstable.

[0007] In order to solve this problem, the following method is considered: an electrolytic cell including an electrolytic unit and a sterilization tank having a gas-liquid contact mechanism are arranged in a water storage container, and water subjected to electrochemical treatment in the electrolytic cell is supplied to the sterilization tank by a pump, thereby solving the above-mentioned problem. In this structure, since a pump is used to supply water from the electrolytic cell to the sterilization tank, when air enters the pump, the water supply amount is reduced, the amount of active oxygen species in the sterilization tank is reduced, and there is a problem that a stable sterilization and deodorization effect may not be achieved.

[0008] The present invention has been made in view of such a problem, and provides an air purifying device capable of supplying an appropriate amount of active oxygen species to a sterilization tank and exerting a stable sterilization effect.

[0009] The air purification device of the present invention includes: a main body shell having an air intake port and a blowout port; an electrolytic cell disposed in the main body shell and storing water containing sodium chloride; an electrolytic unit, which electrolyzes the water in the electrolytic cell to generate water containing active oxygen species; a sterilization tank to which the water containing active oxygen species is supplied to the electrolytic cell; a gas-liquid contact portion, which is configured in a manner such that its lower end is immersed in the water containing active oxygen species in the sterilization tank; a fan, which blows air sucked from the air intake port to the blowout port via the gas-liquid contact portion; an opening disposed on the bottom surface of the electrolytic cell; a valve member covering the opening; and a moving mechanism for moving the valve member, wherein a sterilization tank is disposed below the opening, and when the valve member moves away from the opening edge of the opening, the opening is opened and the water containing active oxygen species in the electrolytic cell is supplied to the sterilization tank, and when the valve member abuts against the opening edge of the opening, the opening is closed and the supply of the water containing active oxygen species in the electrolytic cell to the sterilization tank is stopped.

[0010] According to the present invention, it is possible to provide an air purifying device capable of supplying an appropriate amount of active oxygen species to a sterilization tank and exerting a stable sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a perspective view of the air cleaning device according to the first embodiment of the present invention.

[0012] Figure 2 This is a perspective view of the air purification device with its panel opened.

[0013] Figure 3 This is a diagram showing a cross-sectional structure when viewed from the right side toward the front of the air purifier.

[0014] Figure 4 It is a partially exploded stereoscopic diagram of the air purification device.

[0015] Figure 5 It is a partially exploded stereoscopic diagram of the air purification device.

[0016] Figure 6 It is an exploded perspective view of the tank component of the air purification device.

[0017] Figure 7 It is a diagram showing the cross-sectional structure of a tank component of the air purification device.

[0018] Figure 8 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0019] Fig. 9 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0020] Fig.10 It is a three-dimensional diagram of the water storage container of the air purification device.

[0021] Fig.11 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0022] Fig.12 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0023] Fig.13 It is an exploded perspective view of the moving mechanism of the air purification device.

[0024] Fig.14 It is a perspective view of an air cleaning device according to a second embodiment of the present invention.

[0025] Fig.15 This is a perspective view of the air purification device with its panel opened.

[0026] Fig.16 This is a diagram showing a cross-sectional structure when viewed from the right side toward the front of the air purifier.

[0027] Fig.17 It is a partially exploded stereoscopic diagram of the air purification device.

[0028] Fig.18 It is a partially exploded stereoscopic diagram of the air purification device.

[0029] Fig.19 It is an exploded perspective view of the tank component of the air purification device.

[0030] Fig. 20 It is a diagram showing the cross-sectional structure of a tank component of the air purification device.

[0031] Fig.21 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0032] Fig. 22 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0033] Fig.23 It is a three-dimensional diagram of the water storage container of the air purification device.

[0034] Fig.24 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0035] Fig.25 It is a diagram showing the cross-sectional structure of the water storage container of the air purification device.

[0036] Fig.26 It is an exploded perspective view of the moving mechanism of the air purification device.

[0037] Fig. 27It is a plan view of the water storage container of the air purification device. DETAILED DESCRIPTION

[0038] (First embodiment)

[0039] A first embodiment of the present invention will be described with reference to the drawings.

[0040] Figure 1 and Figure 2 1 is a perspective view of an air purifier 1 according to a first embodiment of the present invention. Figure 1 This is a diagram of the air cleaning device as seen from obliquely above the front side. Figure 2 This is a diagram of the air purifier 1 with the panel opened, viewed from the front side obliquely upward. Figure 3 This is a diagram showing a cross-sectional structure when the air purifying device 1 is viewed from the right side when facing the front.

[0041] The detailed structure of the air purification device 1 is described below. Figures 1 to 3 As shown, the air purification device 1 of the present embodiment includes a substantially box-shaped main body casing 2 , a fan 3 , an air purification unit 4 , a control unit 5 , and an operation unit 6 .

[0042] The main body casing 2 has a substantially long box shape, and is provided with an air inlet 7 , an air outlet 8 , and a panel 9 .

[0043] The air inlet 7 is provided on the back side of the main body casing 2 .

[0044] The blow-out port 8 is an openable and closable type and is provided on the back side of the top surface of the main body casing 2. An operation unit 6 is provided on the front side of the top surface of the main body casing 2. The operation unit 6 is covered by a cover 6a that can rotate freely in the vertical direction, and when the cover 6a is opened, the operation unit 6 is visible.

[0045] An openable and closable panel 9 is provided on the front surface of the main body casing 2. When the panel 9 is opened, the air purification unit 4 is provided in the main body casing 2.

[0046] like Figure 3 As shown, an air path 11 (illustrated by arrows) is provided in the main body shell 2 to connect the air inlet 7 with the blow-out port 8. In the air path 11, an air purification unit 4 (including a water storage container 19 and a filter portion described later), a fan 3 and the blow-out port 8 are sequentially provided from the air inlet 7.

[0047] The fan 3 is provided at an upper portion of the main body casing 2 and includes a motor portion 12 , two fan portions 13 rotated by the motor portion 12 , and two scroll-shaped casing portions 14 surrounding the fan portions.

[0048] The motor portion 12 is a biaxial motor, and a rotation shaft 15 of the motor portion 12 extends in the left-right direction when viewed from the front of the main body casing 2 .

[0049] The two fan units 13 are sirocco fans, and are fixed to both ends of a rotating shaft 15 extending in the horizontal direction from the motor unit 12. The motor unit 12 is disposed between the left fan unit 13 and the right fan unit 13 as seen from the front.

[0050] The two housing parts 14 are provided with an exhaust port 16, a first suction port (not shown) and a second suction port (not shown). The exhaust port 16 is provided on the upper surface side of the main body shell 2 of the housing part 14. In addition, the first suction port is provided on the left side of the main body shell 2 of the housing part 14 when viewed from the front, and the second suction port is provided on the right side of the main body shell 2 of the housing part 14 when viewed from the front. When the fan part 13 is rotated by the motor part 12, the air outside the housing part 14 flows into the housing part 14 from the first suction port and the second suction port, and the air is blown out of the housing part 14 from the exhaust port 16.

[0051] Figure 4 This is a perspective view of the air purifier 1 according to the first embodiment of the present invention, in which the panel 9 is opened, the tank member 20 is taken out, and the air purifier 1 is viewed from obliquely above the front side. Figure 5 This is a perspective view of the air purifier according to Embodiment 1 of the present invention, in which the panel 9 is opened, the water storage container 19 is taken out, and the air purifier 1 is viewed from obliquely above the front side.

[0052] like Figure 4 and Figure 5 As shown, the air purifier 4 is disposed in the cavity 10. The cavity 10 is a hole that is recessed from the front side of the main body shell 2 to the back side of the main body shell 2. The air purifier 4 can be taken out of the cavity 10 to the outside of the main body shell 2. The air purifier 4 includes a water storage container 19, a tank component 20, a gas-liquid contact portion 21, and an electrolytic unit 22.

[0053] The water storage container 19 has a box shape with an opening on the top surface and has a structure capable of storing water. The water storage container 19 is arranged at the lower part of the main body shell 2 and is arranged to be slidable in the horizontal direction from the hollow part 10 and detachable. The water storage container 19 stores water supplied from the tank member 20.

[0054] Figure 6 It is an exploded perspective view of the tank member 20 according to the first embodiment of the present invention. Figure 7 It is a figure which shows the cross-sectional structure of the tank member 20 which concerns on 1st Embodiment of this invention. Figure 8 It is a figure which shows the cross-sectional structure of the water storage container 19 which concerns on 1st Embodiment of this invention. Fig. 9 This is a diagram showing a cross-sectional structure of a state where a tank member 20 and a gas-liquid contact portion 21 are attached to a water storage container 19 according to the first embodiment of the present invention.

[0055] like Figure 6 to Figure 9 As shown, the tank member 20 is provided at the lower part of the main body case 2, and has a structure that can be detached from the water storage container 19. The bottom surface of the water storage container 19 is provided with a tank holding portion 23 that protrudes upward.

[0056] The tank member 20 is attached to the tank holding portion 23 provided on the bottom surface of the water storage container 19. The tank member 20 includes a tank 24 for storing water, an opening 24a provided on the bottom surface of the tank 24 and connecting the inside of the tank 24 with the outside of the tank 24, and a cover 25 covering the opening 24a.

[0057] The cover 25 includes, at the center thereof, a hole 25b communicating in the vertical direction, a valve portion 26 opening and closing the hole 25b, and a cylindrical barrel portion 25a surrounding the hole 25b and having a central axis protruding downward in the vertical direction from the extension cover 25. The hole 25b is arranged at the center when viewed in the central axis direction of the barrel portion 25a.

[0058] In the above structure, when the tank member 20 is mounted at the position of the tank holding portion 23 of the water storage container 19 with the opening 24a of the tank 24 facing downward, the valve portion 26 is opened by the tank holding portion 23. That is, when water is put into the tank member 20 and the tank member 20 is mounted at the position of the tank holding portion 23, the valve portion 26 moves upward through the tank holding portion 23, and the hole 25b of the cover 25 is opened. When the hole 25b of the cover 25 is opened, the water in the tank 24 is supplied to the water storage container 19 through the hole 25b of the cover 25, and the water is stored in the water storage container 19.

[0059] When the water level in the water storage container 19 rises and reaches the lower end of the cylindrical portion 25a of the cover 25, the hole 25b of the tank member 20 is sealed by water, and the water supply stops. Water remains in the tank member 20, and when the water level in the water storage container 19 drops, the water in the tank is supplied to the water storage container 19 every time. That is, the water level in the water storage container 19 is kept constant.

[0060] Fig.10 It is a perspective view showing that the gas-liquid contact portion 21 is attached to the water storage container 19 according to the first embodiment of the present invention.

[0061] like Figure 8 and Fig.10 As shown, the gas-liquid contact part 21 is a member for contacting water stored in the water storage container 19 with room air sucked into the main body casing 2 by the fan 3. The gas-liquid contact part 21 includes a filter 27, a filter frame 28, and a driving unit (not shown).

[0062] The filter 27 is cylindrical and has holes in the circumference thereof for allowing air to flow. The filter 27 is attached to the filter frame 28 so that one end of the filter 27 is immersed in the water in the water storage container 19 .

[0063] The filter frame 28 is rotatably supported by a bearing portion 30 provided in the water storage container 19. The filter 27 and the filter frame 28 have a structure that is rotated by a driving portion.

[0064] like Figure 3 , Figure 4 , Figure 5 and Fig.10 As shown in FIG. 1 , the electrolytic unit 22 is provided on the main body case 2 so as to be movable in the vertical direction. Figure 3 In the embodiment, the electrolytic cell 22 is in a state of moving downward. The electrolytic cell 22 includes a first electrode (not shown) and a second electrode (not shown).

[0065] The water storage container 19 is installed in the hollow portion 10 at the lower portion of the main body case 2, and when the electrolytic unit 22 is moved downward, the first electrode and the second electrode are immersed in the water storage container 19 (see Figure 3 ). When a voltage is applied to the first electrode and the second electrode while the first electrode and the second electrode are immersed in the water storage container 19, water in the water storage container 19 containing an electrolysis-promoting solvent (not shown) introduced by a user is electrochemically treated.

[0066] In addition, an example of the electrolysis-promoting solvent is sodium chloride, and hypochlorous acid is generated from the sodium chloride aqueous solution by the electrolytic unit 22. In addition, the electrolytic unit 22 has a structure that can be detached from the main body case 2.

[0067] The control unit 5 controls the electrolytic cell 22, the driving unit of the gas-liquid contact part 21, and the motor unit 12 of the blower 3. Specifically, the control unit 5 controls the voltage applied to the first electrode and the second electrode of the electrolytic cell 22, the operation of the driving unit of the gas-liquid contact part 21, and the rotation speed of the fan unit 13 of the blower 3, etc. according to the operation of the operation unit 6.

[0068] When the fan unit 13 is rotated by the motor unit 12 of the blower 3, air is sent to the air passage 11. When the fan unit 13 rotates, in the air passage 11, the external air entering the main body casing 2 from the air inlet 7 is blown out from the main body casing 2 through the air purification unit 4 (water storage container 19 and filter 27), the blower 3 and the blow-out port 8 in sequence.

[0069] like Figure 8 to Figure 10 As shown, the water storage container 19 includes an electrolytic cell 31 for storing water containing sodium chloride and a sterilization tank 32 for supplying water containing active oxygen species to the electrolytic cell 31 .

[0070] The electrolytic tank 31 is provided with a tank member 20 and an electrolytic unit 22. The tank member 20 is detachable from the electrolytic tank 31 and supplies water to the electrolytic tank 31. The user puts an electrolysis-promoting solvent (not shown) into the electrolytic tank 31, and the electrolytic tank 31 stores water containing sodium chloride as the electrolysis-promoting solvent.

[0071] The electrolysis unit 22 is a structure that can move in the up-down direction. By moving downward, a portion of the first electrode (not shown) and the second electrode (not shown) of the electrolysis unit 22 are immersed in the water in the electrolytic tank 31. In this state, the electrolysis unit 22 electrolyzes the water in the electrolytic tank 31 to generate water containing active oxygen species. When the electrolysis unit 22 is moved upward, the electrolysis unit 22 is located above the water storage container 19.

[0072] In sterilization tank 32, gas-liquid contact part 21 is arranged so that the lower end of filter 27 is immersed in water containing active oxygen species. Air sucked from air inlet 7 is blown toward outlet 8 via gas-liquid contact part 21 by blower 3.

[0073] Fig.11 This is a diagram showing a cross-sectional structure in which a tank member 20 and a gas-liquid contact portion 21 are attached to a water storage container 19 according to the first embodiment of the present invention, and shows a state in which an opening 33 is opened. Fig.12 This is a diagram showing a cross-sectional structure in which a tank member 20 and a gas-liquid contact portion 21 are attached to a water storage container 19 according to the first embodiment of the present invention, and shows a state in which an opening 33 is closed.

[0074] like Figure 8 to Figure 12 As shown in FIG. 1 , one of the features of this embodiment is a structure for supplying water containing active oxygen species in the electrolytic cell 31 to the sterilizing cell 32. Specifically, the water storage container 19 includes an opening 33 provided on the bottom surface of the electrolytic cell 31, a valve member 34 covering the opening 33, and a moving mechanism 35 for moving the valve member 34. A part of the sterilizing cell 32 is arranged below the opening 33. When the valve member 34 is moved away from the opening edge of the opening 33 by the moving mechanism 35, the opening 33 is opened, and the water containing active oxygen species in the electrolytic cell 31 is supplied to the sterilizing cell 32. On the other hand, when the valve member 34 abuts against the opening edge of the opening 33, the opening 33 is closed, and the supply of the water containing active oxygen species in the electrolytic cell 31 to the sterilizing cell 32 is stopped.

[0075] In this mechanism, water flows from the electrolytic cell 31 to the sterilizing tank 32 by opening and closing the opening 33 by the valve member 34. Thus, compared with the case where water is supplied from the electrolytic cell 31 to the sterilizing tank 32 using a pump, the water supply is not reduced due to the pump sucking in air, and the active oxygen species can be stably supplied, and the supply amount can be controlled to an arbitrary amount according to the opening and closing time.

[0076] In addition, if Figure 8As shown, the bottom surface of the electrolytic cell 31 includes a first bottom surface 31a as a bottom surface having an opening 33 and a second bottom surface 31b into which sodium chloride as an electrolysis promoting solvent is put. The first bottom surface 31a is provided above the second bottom surface 31b.

[0077] This can prevent the sodium chloride introduced into the second bottom surface 31 b from flowing out into the sterilization tank 32 before electrolysis for generating hypochlorous acid is performed.

[0078] Fig.13 It is an exploded perspective view of the moving mechanism 35 according to the first embodiment of the present invention.

[0079] like Fig.13 As shown, the moving mechanism 35 has a rod portion 37 and a float portion 38 .

[0080] The rod 37 has both ends that rotate in the up-down direction. Specifically, the rod 37 includes a rod portion 40 , a rotation shaft portion 41 , and a connection portion 42 .

[0081] The rod portion 40 extends in the horizontal direction and has a substantially C-shaped longitudinal cross-section opening upward in a side view, and includes a horizontally long flat plate-shaped lower plate 40a and two horizontally long flat plate-shaped side plates 40b extending upward from both long sides of the lower plate 40a.

[0082] The rotation shaft portions 41 are two protrusions that protrude outward from the two side plates 40b in a right angle (perpendicular) direction and in a horizontal direction relative to the side plates 40b. The two rotation shaft portions 41 are rotatably mounted on a rod support portion (not shown) provided on the water storage container 19. The rod portion 37 rotates around the rotation shaft portion 41, and the two ends of the two rod portions 40 move in opposite directions in the vertical direction such that when one end rises, the other end falls.

[0083] The connecting portion 42 is provided on the other side of the rod portion 37 opposite to the side provided with the float portion 38, and has a rod-shaped shaft portion 42a protruding upward from the rod portion 37 and an annular groove portion 42b provided in the center of the shaft portion 42a and recessed toward the central axis of the shaft portion 42a.

[0084] The valve member 34 is made of an elastic material, such as rubber. The valve member 34 is in a conical shape that expands upward and has a hole 34a in the center. The opening edge of the hole 34a of the valve member 34 is embedded in the groove portion 42b of the shaft portion 42a, and the valve member 34 is fixed to the shaft portion 42a of the connecting portion 42.

[0085] The float 38 has buoyancy and is provided on one side of the rod 37. The float 38 is made of foamed polystyrene and floats on the water surface of the sterilization tank 32 within the vertical movement range of the rod 37 and moves with the water surface.

[0086] In the above structure, when the water level of the sterilizing tank 32 drops, the float 38 also drops, the connecting portion 42 and the valve member 34 rise, the valve member 34 moves away from the opening edge of the opening 33, and the opening 33 opens, and the water containing active oxygen species in the electrolytic tank 31 is supplied to the sterilizing tank 32 (see Fig.11 ).

[0087] On the other hand, when the water level of the sterilizing tank 32 rises, the float portion 38 also rises, the connecting portion 42 and the valve member 34 descend, the valve member 34 abuts against the opening edge of the opening 33 to close the opening 33, and the supply of water containing active oxygen species to the electrolytic tank 31 stops (see Fig.12 ) In this way, the water level of the sterilization tank 32 in the state where the supply of the water containing active oxygen species from the electrolytic tank 31 to the sterilization tank 32 is stopped becomes the normal water level of the sterilization tank.

[0088] That is, in the present invention, without using power such as electricity, when the water level in the sterilizing tank 32 drops, the valve member 34 moves away from the opening edge of the opening 33, the opening 33 opens, and water flows from the electrolytic tank 31 to the sterilizing tank 32. As a result, the water level in the sterilizing tank 32 rises, the valve member 34 abuts against the opening edge of the opening 33, and the opening 33 is closed, and the flow of water from the electrolytic tank 31 to the sterilizing tank 32 stops. By repeating this operation, as long as there is water in the electrolytic tank 31, the water level in the sterilizing tank 32 is kept constant.

[0089] In addition, the rod 37 is connected to the valve member 34 through the connecting portion 42, so as the rod 37 moves up and down, the valve member 34 also moves up and down. This structure is effective when more water than expected is supplied from the electrolytic cell 31 to the sterilizing tank 32 when there is water leakage from the valve member 34 for some reason. Specifically, the position of the float portion 38 rises significantly compared to normal due to the large amount of water level rise in the sterilizing tank 32, and the valve member 34 connected by the connecting portion 42 uses the buoyancy of the float portion 38 to abut against the opening edge of the opening 33 with a stronger force than normal. According to this structure, in the case of some water leakage, the water leakage can be sealed with a stronger force than the prior art, which helps to prevent water leakage.

[0090] In addition, the float portion 38 rises, the connecting portion 42 and the valve member 34 descend, the valve member 34 abuts against the opening edge of the opening 33 to close the opening 33, and the opening 33 provided on the bottom surface of the electrolytic tank 31 is provided above the water surface in the sterilization tank 32 in a state where the supply of water containing active oxygen species to the electrolytic tank 31 of the sterilization tank 32 is stopped.

[0091] The water containing active oxygen species transported to the sterilization tank 32 is vaporized through the filter 27 and released to the outside of the body, but at this time, the components contained in the water are separated. If the components remain attached to the first electrode and the second electrode of the electrolysis unit 22 and electrolysis continues, the life of the electrolysis unit 22 may be shortened.

[0092] In the present embodiment, the opening 33 provided on the bottom surface of the electrolytic tank 31 is provided at a position higher than the water surface in the sterilizing tank 32 in a state where the supply of the water containing active oxygen species of the electrolytic tank 31 to the sterilizing tank 32 is stopped. Therefore, the water containing active oxygen species generated in the electrolytic tank 31 is supplied only to the sterilizing tank 32 and does not flow back. Therefore, the occurrence of the problem of shortening the life of the first electrode and the second electrode of the electrolytic unit 22 included in the electrolytic tank 31 can be reduced.

[0093] (Second embodiment)

[0094] Next, a second embodiment of the present invention will be described with reference to the drawings.

[0095] In the above-mentioned conventional air purification device, the air ventilated into the main body passes through the gas-liquid contact mechanism, and the scattered matter in the air is captured in the water and accumulated in the water storage container. Since most of the scattered matter accumulated in the water hinders the electrochemical treatment of the electrolytic unit, there is a problem that the amount of hypochlorous acid generated by the electrolytic unit is reduced and the sterilization performance is unstable.

[0096] In order to solve this problem, the following method is considered: an electrolytic cell including an electrolytic unit and a sterilizing tank having a gas-liquid contact mechanism are provided in a water storage container, and a water level adjustment mechanism is provided to supply water electrochemically treated in the electrolytic cell to the sterilizing tank, thereby solving the above-mentioned problem. In this structure, if an amount of water exceeding the expected amount is supplied due to a failure of the water level adjustment mechanism, there is a problem that water overflows from the water storage container and leaks to the outside of the main body.

[0097] A second embodiment of the present invention has been made in view of such a problem, and provides an air purifier that can exhibit a stable sterilization performance and prevent water leakage to the outside of a main body casing.

[0098] The air purification device of the second embodiment of the present invention comprises: a main body shell having an air intake port and an air outlet; an electrolytic cell disposed in the main body shell and storing water containing sodium chloride; an electrolytic unit for electrolyzing the water in the electrolytic cell to generate water containing active oxygen species; a tank component for supplying water to the electrolytic cell; a sterilizing tank for the water containing active oxygen species supplied to the electrolytic cell; a gas-liquid contact portion configured in such a manner that the lower end is immersed in the water containing active oxygen species in the sterilizing tank; a fan for sending air sucked from the air intake port to the air outlet via the gas-liquid contact portion; a An opening on the bottom surface; a valve member covering the opening; and a moving mechanism for moving the valve member, wherein a sterilization tank is arranged below the opening, and when the valve member moves away from the opening edge of the opening through the moving mechanism, the opening is opened, and water containing active oxygen species in the electrolytic tank is supplied to the sterilization tank, and when the valve member abuts against the opening edge of the opening, the opening is closed, and the supply of water containing active oxygen species in the electrolytic tank to the sterilization tank is stopped, and the tank member has a water level regulating mechanism for regulating the water level of the electrolytic tank to the normal water level of the electrolytic tank, and the height of the upper end of the sterilization tank is higher than the height of the normal water level of the electrolytic tank.

[0099] According to the second embodiment of the present invention, it is possible to provide an air purifying device that can exhibit stable sterilization performance and prevent water leakage to the outside of the main body casing.

[0100] Fig.14 and Fig.15 2 is a perspective view of an air purification device 101 according to a second embodiment of the present invention. Fig.14 This is a diagram of the air cleaning device 101 as seen from obliquely above the front side.

[0101] Fig.15 This is a diagram of the air cleaning device 101 with the panel opened, as viewed from obliquely above the front side.

[0102] Fig.16 This is a diagram showing a cross-sectional structure when the air purification device 101 is viewed from the right side.

[0103] The detailed structure of the air purification device 101 is described below. Figures 14 to 16 As shown, the air purification device 101 of the present embodiment includes a substantially box-shaped main body casing 102 , a fan 103 , an air purification unit 104 , a control unit 105 , and an operation unit 106 .

[0104] The main body casing 102 has a substantially long box shape, and is provided with an air inlet 107 , an air outlet 108 , and a panel 109 .

[0105] The air inlet 107 is provided on the back side of the main body casing 102 .

[0106] The blow-out port 108 is an openable and closable type and is provided on the back side of the top surface of the main body casing 102. The operation unit 6 is provided on the front side of the top surface of the main body casing 102. The operation unit 106 is covered by a cover 106a that can rotate freely in the vertical direction, and the operation unit 106 appears when the cover 106a is opened.

[0107] An openable and closable panel 109 is provided on the front surface of the main body casing 102. When the panel 109 is opened, the air purification unit 104 is provided in the main body casing 102.

[0108] like Fig.16 As shown, an air passage 111 (illustrated by arrows) is provided in the main body shell 102 to connect the air inlet 107 with the air outlet 108. In the air passage 111, an air purification unit 104 (including a water storage container 119 and a filter portion described later), a fan 103 and an air outlet 108 are sequentially provided from the air inlet 107.

[0109] The fan 3 is provided at the upper portion of the main body casing 102 , and includes a motor portion 112 , two fan portions 113 rotated by the motor portion 112 , and two scroll-shaped casing portions 114 surrounding the fan portions.

[0110] The motor unit 112 is a two-axis motor, and a rotation shaft 115 of the motor unit 112 extends in the left-right direction when viewed from the front of the main body casing 102 .

[0111] The two fan units 113 are sirocco fans, and are fixed to both ends of a rotating shaft 115 extending in the horizontal direction from the motor unit 112. The motor unit 112 is disposed between the left fan unit 113 and the right fan unit 113 as seen from the front.

[0112] The two housing parts 114 are provided with an exhaust port 116, a first suction port (not shown) and a second suction port (not shown). The exhaust port 116 is provided on the upper side of the main body shell 102 of the housing part 114. In addition, the first suction port is provided on the left side of the main body shell 102 of the housing part 114 when viewed from the front, and the second suction port is provided on the right side of the main body shell 102 of the housing part 114 when viewed from the front. When the fan part 113 is rotated by the motor part 112, the air outside the housing part 114 flows into the housing part 114 from the first suction port and the second suction port, and the air is blown out of the housing part 114 from the exhaust port 116.

[0113] Fig.17 This is a perspective view of an air purifier 101 according to a second embodiment of the present invention, in which the panel 109 is opened, the tank member 120 is taken out, and the air purifier 101 is viewed from obliquely above the front side. Fig.18This is a perspective view of an air purifier 101 according to a second embodiment of the present invention, in which the panel 109 is opened, the water storage container 119 is taken out, and the air purifier 101 is viewed from obliquely above the front side.

[0114] The air purifier 104 is disposed in the cavity 110. The cavity 110 is a hole that is recessed from the front side of the main body shell 102 to the back side of the main body shell 102. The air purifier 104 can be taken out of the main body shell 102 from the cavity 110. The air purifier 104 includes a water storage container 119, a tank member 120, a gas-liquid contact portion 121, and an electrolytic unit 122.

[0115] The water storage container 119 has a box shape with an opening on the top surface, and is a structure capable of storing water. The water storage container 119 is arranged at the lower part of the main body shell 102, and is arranged to be slidable in the horizontal direction from the hollow part 110 and detachable. The water storage container 119 stores water supplied from the tank member 120.

[0116] Fig.19 It is an exploded perspective view of the tank member 120 according to the second embodiment of the present invention. Fig. 20 It is a diagram showing a cross-sectional structure of a tank member 120 according to a second embodiment of the present invention. Fig.21 It is a figure which shows the cross-sectional structure of the water storage container 119 which concerns on 2nd Embodiment of this invention. Fig. 22 This is a diagram showing a cross-sectional structure of a state in which a tank member 120 and a gas-liquid contact portion 121 are attached to a water storage container 119 according to a second embodiment of the present invention.

[0117] like Figure 19 to Figure 22 As shown, the tank member 120 is provided at the lower part of the main body case 102, and has a structure that can be attached to and detached from the water storage container 119. The bottom surface of the water storage container 119 is provided with a tank holding portion 123 that protrudes upward.

[0118] The tank member 120 is attached to the tank holding portion 123 provided on the bottom surface of the water storage container 119. The tank member 120 includes a tank 124 for storing water, an opening 124a provided on the bottom surface of the tank 124 and connecting the inside of the tank 124 with the outside of the tank 124, and a cover 125 covering the opening 124a.

[0119] The cover 125 includes, at the center thereof, a hole 125b communicating in the vertical direction, a valve portion 126 opening and closing the hole 125b, and a cylindrical barrel portion 125a surrounding the hole 125b and having a central axis protruding downward in the vertical direction from the extension cover 125. The hole 125b is arranged at the center as viewed in the central axis direction of the barrel portion 125a.

[0120] In the above structure, when the tank member 120 is mounted at the position of the tank holding portion 123 of the water storage container 119 with the opening 124a of the tank 124 facing downward, the valve portion 126 is opened by the tank holding portion 123. That is, when water is put into the tank member 120 and mounted at the position of the tank holding portion 123, the valve portion 126 is moved upward by the tank holding portion 123, and the hole 125b of the cover 125 is opened. When the hole 125b of the cover 125 is opened, the water in the tank 124 is supplied to the water storage container 119 through the hole 125b of the cover 125, and the water is stored in the water storage container 119.

[0121] When the water level in the water storage container 119 rises and reaches the lower end of the cylindrical portion 125a of the cover 125, the hole 125b of the tank member 120 is sealed by water, and the water supply stops. Water remains in the tank member 120, and when the water level in the water storage container 119 drops, the water in the tank is supplied to the water storage container 119 every time. That is, the water level in the water storage container 119 is kept constant.

[0122] Fig.23 It is a perspective view showing that the gas-liquid contact portion 121 is attached to the water storage container 119 according to the second embodiment of the present invention.

[0123] like Fig.21 and Fig.23 As shown, the gas-liquid contact part 121 is a member for contacting the water stored in the water storage container 119 with the room air sucked into the main body casing 102 by the fan 103. The gas-liquid contact part 121 has a filter 127, a filter frame 128, and a driving unit (not shown).

[0124] The filter 127 is cylindrical and has holes in the circumference thereof through which air can flow. The filter 127 is attached to the filter frame 128 so that one end of the filter 127 is immersed in the water in the water storage container 119 .

[0125] The filter frame 128 is rotatably supported by a bearing 130 provided in the water storage container 19. The filter 127 and the filter frame 128 have a structure that is rotated by a driving unit.

[0126] like Fig.16 , Fig.17 , Fig.18 and Fig.23 As shown in FIG. 1 , the electrolytic unit 122 is provided on the main body case 102 so as to be movable in the vertical direction. Fig.16 In the embodiment, the electrolytic cell 122 is in a state of moving downward. The electrolytic cell 122 includes a first electrode (not shown) and a second electrode (not shown).

[0127] The water storage container 119 is mounted in the hollow portion 110 at the lower portion of the main body case 102, and when the electrolytic unit 122 is moved downward, the first electrode and the second electrode are immersed in the water storage container 119 (see Fig.16 ). When a voltage is applied to the first electrode and the second electrode while the first electrode and the second electrode are immersed in the water storage container 119, water in the water storage container 119 containing an electrolysis-promoting solvent (not shown) introduced by a user is electrochemically treated.

[0128] In addition, an example of the electrolysis promoting solvent is sodium chloride, and hypochlorous acid is generated from the sodium chloride aqueous solution by the electrolysis unit 122. In addition, the electrolysis unit 122 has a structure that can be detached from the main body case 102.

[0129] The control unit 105 controls the electrolytic cell 122, the driving unit of the gas-liquid contact part 121, and the motor unit 112 of the blower 103. Specifically, the control unit 105 controls the voltage applied to the first electrode and the second electrode of the electrolytic cell 122, the operation of the driving unit of the gas-liquid contact part 121, and the rotation speed of the fan unit 113 of the blower 103, etc. according to the operation of the operation unit 106.

[0130] When the fan unit 113 is rotated by the motor unit 112 of the blower 103, air is sent to the air passage 111. When the fan unit 113 rotates, in the air passage 111, the external air entering the main body casing 102 from the air inlet 107 is blown out from the main body casing 102 through the air purification unit 104 (water storage container 119 and filter 127), the blower 103 and the blow-out port 108 in sequence.

[0131] like Figure 21 to Figure 23 As shown, the water storage container 119 includes an electrolytic cell 131 for storing water containing sodium chloride and a sterilization tank 132 for supplying water containing active oxygen species to the electrolytic cell 131 .

[0132] The electrolytic tank 131 is provided with a tank member 120 and an electrolytic unit 122. The tank member 120 is detachable from the electrolytic tank 131 and supplies water to the electrolytic tank 131. The user puts an electrolysis-promoting solvent (not shown) into the electrolytic tank 131, and the electrolytic tank 131 stores water containing sodium chloride as the electrolysis-promoting solvent.

[0133] The electrolysis unit 122 is a structure that can move in the vertical direction. By moving downward, a portion of the first electrode (not shown) and the second electrode (not shown) of the electrolysis unit 122 are immersed in the water in the electrolytic tank 131. In this state, the electrolysis unit 122 electrolyzes the water in the electrolytic tank 131 to generate water containing active oxygen species. When the electrolysis unit 122 is moved upward, the electrolysis unit 122 is located above the water storage container 119.

[0134] In sterilizing tank 132 , gas-liquid contact portion 121 is arranged so that the lower end of filter 127 is immersed in water containing active oxygen species. Air sucked from air inlet 107 is blown toward outlet 108 via gas-liquid contact portion 121 by fan 103 .

[0135] Fig.24 This is a diagram showing a cross-sectional structure in which a tank member 120 and a gas-liquid contact portion 121 are attached to a water storage container 119 according to a second embodiment of the present invention, and shows a state in which an opening 133 is opened. Fig.25 This is a diagram showing a cross-sectional structure in which a tank member 120 and a gas-liquid contact portion 121 are attached to a water storage container 119 according to a second embodiment of the present invention, and shows a state in which an opening 133 is closed.

[0136] like Figure 21 to Figure 25 As shown, the water storage container 119 includes: an opening 133 provided on the bottom surface of the electrolytic cell 131; a valve member 134 covering the opening 133; and a moving mechanism 135 for moving the valve member 134 in the up-down direction. A sterilizing tank 132 is arranged below the opening 133. When the valve member 134 leaves the opening edge of the opening 133 by the moving mechanism 135, the opening 133 is opened, and the water containing active oxygen species in the electrolytic cell 131 is supplied to the sterilizing tank 132. On the other hand, when the valve member 134 abuts against the opening edge of the opening 133, the opening 133 is closed, and the supply of the water containing active oxygen species in the electrolytic cell 131 to the sterilizing tank 132 is stopped.

[0137] One of the characteristics of this embodiment is that the tank member 120 has a function of adjusting the water level of the electrolytic tank 131 to the normal water level 146 of the electrolytic tank (see Fig. 22 ) water level adjustment mechanism 136, the height of the upper end of the sterilizing tank 132 is higher than the height of the normal water level 146 of the electrolytic tank 131. Specifically, the water level adjustment mechanism 136 is a cylindrical barrel portion 125a protruding downward from the cover 125 of the tank member 120.

[0138] When water is put into the tank member 120 and the tank member 120 is mounted on the tank holding portion 123, the valve portion 126 is opened, and water is supplied from the tank member 120 to the water storage container 119 through the hole 125b of the cover 125, and the water is stored in the water storage container 119. When the water level in the water storage container 119 rises and the water reaches the lower end of the cylindrical portion 125a of the cover 125, the hole 125b of the cover 125 of the tank member 120 is sealed by water, and the water supply is stopped. In this embodiment, the height of the lower end of the cylindrical portion 125a is the electrolytic cell normal water level 146 of the electrolytic cell 131.

[0139] Thus, even when the moving mechanism 135 or the valve member 134 fails and the valve member 134 does not close the opening 133, and water continues to flow from the electrolytic cell 131 to the sterilizing tank 132 through the opening 133, it is possible to suppress water from overflowing from the sterilizing tank 132. That is, when water continues to flow from the electrolytic cell 131 to the sterilizing tank 132 through the opening 133, the water level of the sterilizing tank 132 rises to the height of the electrolytic cell normal water level 146 of the electrolytic cell 131. When the water level of the sterilizing tank 132 rises to the height of the electrolytic cell normal water level 146 of the electrolytic cell 131, the water level of the sterilizing tank 132 becomes the same as the water level of the electrolytic cell 131, and the flow of water from the electrolytic cell 131 to the sterilizing tank 132 through the opening 133 stops. In addition, the height of the upper end of the sterilizing tank 132, which is substantially bowl-shaped, is higher than the height of the electrolytic cell normal water level 146 of the electrolytic cell 131, so it is possible to suppress water from overflowing from the sterilizing tank 132.

[0140] Fig.26 It is an exploded perspective view of the moving mechanism 135 according to the second embodiment of the present invention.

[0141] like Fig.26 As shown, the moving mechanism 135 has a rod portion 137 and a float portion 138 .

[0142] Both ends of the rod 137 rotate in the up-down direction. Specifically, the rod 137 includes a rod portion 140 , a rotation shaft portion 141 , and a connection portion 142 .

[0143] The rod portion 140 extends in the horizontal direction and has a substantially C-shaped longitudinal cross-section opening upward in a side view, and includes a horizontally long flat plate-shaped lower plate 140a and two horizontally long flat plate-shaped side plates 140b extending upward from both long sides of the lower plate 140a.

[0144] The rotation axis portions 141 are two protrusions that protrude outward from the two side plates 140b in a right angle (perpendicular) direction and in a horizontal direction relative to the side plates 140b. The two rotation axis portions 141 are rotatably mounted on a rod support portion (not shown) provided in the water storage container 119. The rod portion 137 rotates around the rotation axis portion 141, and the two ends of the two rod portions 140 move in opposite directions in the vertical direction in such a manner that when one end rises, the other end falls.

[0145] The connecting portion 142 is provided on the other side of the rod portion 137 opposite to the side where the float portion 138 is provided, and has a rod-shaped shaft portion 142a protruding upward from the rod portion 137, and an annular groove portion 142b provided in the central portion of the shaft portion 142a and recessed toward the central axis of the shaft portion 142a.

[0146] The valve member 134 is made of an elastic material, such as rubber. The valve member 134 is in a conical shape that expands upward and has a hole 134a in the center. The opening edge of the hole 134a of the valve member 134 is embedded in the groove portion 142b of the shaft portion 142a, and the valve member 134 is fixed to the shaft portion 142a of the connecting portion 142.

[0147] The float 138 has buoyancy and is provided on one side of the rod 137. The float 138 is made of foamed polystyrene and floats on the water surface of the sterilizing tank 132 within the vertical movement range of the rod 137 and moves with the water surface.

[0148] In the above structure, when the water level of the sterilizing tank 132 drops, the float 138 also drops, the connecting portion 142 and the valve member 134 rise, the valve member 134 moves away from the opening edge of the opening 133, and the opening 133 opens, and the water containing active oxygen species in the electrolytic tank 131 is supplied to the sterilizing tank 132 (see Fig.24 ).

[0149] On the other hand, if the water level of the sterilizing tank 132 rises, the float 138 also rises, the connecting portion 142 and the valve member 134 fall, the valve member 134 abuts against the opening edge of the opening 133 to close the opening 133, and the supply of water containing active oxygen species to the electrolytic tank 131 is stopped (see Fig.25 The water level of the sterilization tank 132 in the state where the supply of the water containing active oxygen species from the electrolytic cell 131 of the sterilization tank 132 is stopped becomes the sterilization tank normal water level 147 .

[0150] Fig. 27 It is a plan view showing that the gas-liquid contact portion 121 is attached to the water storage container 119 according to the second embodiment of the present invention.

[0151] like Fig.16 and Fig. 27 As shown in FIG. 1 , a water level detection unit 144 is provided in the sterilization tank 132 to detect an abnormal water level in the sterilization tank 132. The water level detection unit 144 is provided at a position higher than a normal water level 147 of the sterilization tank 132 and lower than a normal water level 146 of the electrolytic tank 131. When the water level detection unit 144 detects an abnormal water level in the sterilization tank, a notification unit 145 (see FIG. 1 ) notifies the user. Fig.16 )Work.

[0152] Thus, it is possible to notify the user that the moving mechanism 135 or the valve member 134 has failed. If the moving mechanism 135 or the valve member 134 has failed, the valve member 134 does not close the opening 133, and water continues to flow from the electrolytic cell 131 to the sterilizing tank 132 through the opening 133, and the water level of the sterilizing tank 132 rises to the height of the electrolytic cell normal water level 146 of the electrolytic cell 131. If the water level of the sterilizing tank 132 reaches the sterilizing tank abnormal water level before reaching the electrolytic cell normal water level 146 of the electrolytic cell 131, the water level detection unit 144 detects the sterilizing tank abnormal water level, and the notification unit 145 notifies the user, so that it is possible to further suppress water from overflowing from the sterilizing tank 132.

[0153] Furthermore, the moving mechanism 135 adjusts the water level of the sterilizing tank 132 to the sterilizing tank normal water level 147 , and the opening 133 provided on the bottom surface of the electrolytic tank 131 is arranged at a position higher than the water surface of the sterilizing tank normal water level 147 .

[0154] This can suppress the water in sterilizing tank 132 from flowing back to electrolytic tank 131 , thereby reducing the amount of dirt contained in the air blown to sterilizing tank 132 adhering to electrolytic unit 122 of electrolytic tank 131 , and stabilizing the amount of hypochlorous acid volatilization.

[0155] The present invention has been described above based on the embodiments. These embodiments are illustrative only, and various modifications can be made to the combinations of the components or processing procedures of the embodiments, and such modifications are also within the scope of the present invention.

[0156] Furthermore, it is possible to combine the constituent elements or the processing procedures among the respective embodiments, and such combinations are also within the scope of the present invention.

[0157] Industrial Applicability

[0158] The present invention is suitable as an air purifier or the like for removing microorganisms floating in space.

[0159] Description of Reference Numerals

[0160] 1. Air Purification Device

[0161] 2Main shell

[0162] 3. Fan

[0163] 4 Air Purification Unit

[0164] 5. Control Unit

[0165] 6 Operation Department

[0166] 6a hood

[0167] 7 Intake port

[0168] 8 Blowing outlet

[0169] 9 Panels

[0170] 10 Hollow

[0171] 11 Wind Road

[0172] 12 Motor

[0173] 13 Fan Department

[0174] 14 Shell

[0175] 15 Rotation axis

[0176] 16 outlets

[0177] 19 water storage container

[0178] 20 can parts

[0179] 21 Gas-liquid contact part

[0180] 22 Electrolysis Unit

[0181] 23 Tank holding unit

[0182] 24 cans

[0183] 24a Opening

[0184] 25 Cover

[0185] 25a Cylinder part

[0186] 25b hole

[0187] 26 valve department

[0188] 27 Filters

[0189] 28 filter boxes

[0190] 30 Bearing

[0191] 31 Electrolyzer

[0192] 31a1st bottom surface

[0193] 31b 2nd bottom surface

[0194] 32 Sterilization tank

[0195] 33 Opening

[0196] 34 valve parts

[0197] 34a hole

[0198] 35 mobile mechanism

[0199] 37 Rod

[0200] 38 Float

[0201] 40 rod section

[0202] 40a Lower plate

[0203] 40b Side Panel

[0204] 41 Rotating shaft part

[0205] 42 Connection part

[0206] 42a Shaft section

[0207] 42b Slot section

[0208] 101 Air Purification Device

[0209] 102 main body shell

[0210] 103 fan

[0211] 104 Air Purification Department

[0212] 105 Control Department

[0213] 106 Operation Department

[0214] 106a hood

[0215] 107 Intake port

[0216] 108 Blowing Outlet

[0217] 109 Panel

[0218] 110 Hollow

[0219] 111 Wind Road

[0220] 112 Motor Department

[0221] 113 Fan Department

[0222] 114 Shell

[0223] 115 Rotation axis

[0224] 116 Exhaust

[0225] 119 water storage container

[0226] 120 can parts

[0227] 121 Gas-liquid contact part

[0228] 122 electrolysis unit

[0229] 123 tank holding unit

[0230] 124 cans

[0231] 124a Opening

[0232] 125 cover

[0233] 125a Cylinder part

[0234] 125b hole

[0235] 126 valve department

[0236] 127 filters

[0237] 128 filter boxes

[0238] 130 bearing part

[0239] 131 Electrolyzer

[0240] 132 Sterilization tank

[0241] 133 Opening

[0242] 134 valve parts

[0243] 134a hole

[0244] 135 mobile mechanism

[0245] 136 Water level regulating mechanism

[0246] 137 Rod

[0247] 138 Float

[0248] 140 rod section

[0249] 140a Lower plate

[0250] 140b Side Panel

[0251] 141 Rotating shaft part

[0252] 142 Connection part

[0253] 142a Shaft section

[0254] 142b Slot section

[0255] 144 Water level detection unit

[0256] 145 Notification Department

[0257] 146 Normal water level of electrolytic cell

[0258] 147 Normal water level in sterilization tank.

Claims

1. An air purification device, characterized in that: include: A main body shell having an air intake port and an air outlet; An electrolytic cell disposed in the main body shell and storing water containing sodium chloride; an electrolysis unit that electrolyzes the water in the electrolytic cell to generate water containing active oxygen species; a sterilizing tank for water containing the active oxygen species supplied to the electrolytic tank; a gas-liquid contact portion, the lower end of which is arranged to be immersed in the water containing the active oxygen species in the sterilization tank; A fan that sends air sucked from the air inlet to the air outlet via the air-liquid contact portion; An opening disposed on the bottom surface of the electrolytic cell; a valve member covering the opening; and a moving mechanism for moving the valve member, The sterilization tank is arranged below the opening. Through the moving mechanism, when the valve part moves away from the opening edge of the opening, the opening is opened, and the water containing the active oxygen species in the electrolytic cell is supplied to the sterilization tank; when the valve part abuts against the opening edge of the opening, the opening is closed, and the supply of the water containing the active oxygen species in the electrolytic cell to the sterilization tank is stopped.

2. The air purification device according to claim 1, characterized in that: The bottom surface of the electrolytic cell has: a first bottom surface as a bottom surface having the opening; and The second bottom surface can be filled with sodium chloride. The first bottom surface is provided at a position higher than the second bottom surface.

3. The air purification device according to claim 1 or 2, characterized in that: The moving mechanism has: A rod portion with both ends rotating in the up-and-down direction; A float portion provided on one side of the rod portion and floating on the water surface of the sterilization tank; and a connecting portion provided on the other side of the rod and connected to the valve, When the water level of the sterilization tank drops, the float part also drops, the connecting part and the valve member rise, the valve member leaves the opening edge of the opening to open the opening, and the water containing the active oxygen species in the electrolytic cell is supplied to the sterilization tank. When the water level of the sterilization tank rises, the float portion also rises, the connecting portion and the valve member descend, the valve member abuts against the opening edge of the opening to close the opening, and the supply of the water containing the active oxygen species in the electrolytic cell to the sterilization tank is stopped.

4. The air purification device according to claim 3, characterized in that: The float portion rises, the connecting portion and the valve component descend, the valve component abuts against the opening edge of the opening to close the opening, and the opening arranged on the bottom surface of the electrolytic tank is arranged above the water surface in the sterilization tank when the supply of the water containing the active oxygen species to the electrolytic tank of the sterilization tank is stopped.

5. The air purification device according to any one of claims 1 to 4, characterized in that: comprising a tank member for supplying water to the electrolytic cell, The tank member includes a water level adjustment mechanism for adjusting the water level of the electrolytic tank to a normal water level of the electrolytic tank, and the height of the upper end of the sterilization tank is higher than the height of the normal water level of the electrolytic tank.

6. The air purification device according to claim 5, characterized in that: The tank component has: a tank for storing water; an opening provided on the lower surface of the tank and connecting the inside of the tank with the outside of the tank; and a cover covering the opening, In the center of the cover there is: A hole connected in the up-down direction; a valve portion for opening and closing the hole; and A cylindrical barrel portion, which is the water level adjustment mechanism, surrounds the hole, has a central axis extending in the up-down direction and protrudes downward from the cover, When the water level in the electrolytic cell rises and reaches the lower end of the cylindrical portion of the cover, the hole of the tank member is sealed with water.

7. The air purification device according to claim 5 or 6, characterized in that: The moving mechanism adjusts the water level of the sterilization tank in a state where the supply of the water containing active oxygen species to the electrolytic tank of the sterilization tank is stopped to a normal water level of the sterilization tank, The sterilizing tank is provided with a water level detection unit for detecting an abnormal water level of the sterilizing tank. The water level detection unit is provided at a position higher than a normal water level of the sterilization tank and lower than a normal water level of the electrolytic tank. The water level detection unit further includes a notification unit configured to notify a user when the water level detection unit detects an abnormal water level in the sterilization tank.

8. The air purification device according to claim 7, characterized in that: The opening provided in the bottom surface of the electrolytic tank is arranged at a position higher than a normal water level of the sterilization tank in the sterilization tank.

Images