air purifier

Abstract

To provide an air clarification device in which an electrolysis enhancing tablet falling from a tablet charging mechanism drops into a cistern without clogging in the middle.SOLUTION: A cistern 13 has: a tank compartment 13a in which a water tank 12 and an electrolysis unit 17 are provided; a filter compartment 13b in which a filter 14 is provided; and a partition plate 13c that separates the tank compartment 13a and the filter compartment 13b. The water tank 12 is detachably attached to the cistern 13, and is mounted along the partition plate 13c. The water tank 12 has a vertically extending groove portion 50 on a surface facing the partition plate 13c. A tablet loading mechanism 8 is provided above the water tank 12, and an electrolysis-enhancing tablet 43 dropped from the tablet loading mechanism 8 drops into the tank compartment 13a through a space surrounded by the partition plate 13c and the groove portion 50 of the water tank 12.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to an air purifier equipped with a tablet injection mechanism for injecting electrolysis-promoting tablets into water in a water storage container, and an electrolysis unit for generating electrolyzed water from the water in the water storage container. [Background technology]

[0002] BACKGROUND ART Conventionally, in this type of electrolysis promotion tablet injection device, there is known one that has an electrolysis promotion tablet in a cartridge portion (see, for example, Patent Document 1).

[0003] The electrolysis-accelerating tablet injection device will be described below with reference to FIG.

[0004] As shown in Figure 12, the system includes a water tank 101 in which an electrolysis unit 100 equipped with electrodes for electrochemically treating water is disposed, a water supply tank 102 that supplies water to the water tank 101, and a dosing mechanism 104 that dosing electrolysis-accelerating tablets 103 into the water tank 101. The dosing mechanism 104 includes a case 105 that contains the electrolysis-accelerating tablets 103, a movable guide member 106, and a movable member 107. The electrolysis-accelerating tablets 103 are supplied from the case 105 to a hollow portion 108 of the movable guide member 106, and the electrolysis-accelerating tablets 103 supplied to the hollow portion 108 are pushed into the water tank 101 by the movable member 107 that slides in the hollow portion 108. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-52355 Summary of the Invention [Problem to be solved by the invention]

[0006] In such conventional air purifiers, the tablet injection mechanism was positioned near the water surface of the water storage container, which could cause the electrolysis-promoting tablets in the tablet injection mechanism to deliquesce, causing them to stick to the tablet injection mechanism, or the powder from the electrolysis-promoting tablets to accumulate in the falling path, causing the electrolysis-promoting tablets to become clogged in the falling path.

[0007] Therefore, the present invention aims to solve the above-mentioned conventional problems and to provide an air purifier that can prevent electrolysis-promoting tablets from adhering to the tablet feeding mechanism or becoming stuck in the falling path. [Means for solving the problem]

[0008] To achieve this object, the present invention provides a water heater comprising a main body case having an air intake and an air outlet, a water tank provided in the main body case for storing water, a water tank for supplying water to the water tank, a tablet dispenser for dispensing electrolysis-accelerating tablets into the water tank, an electrolysis unit for generating electrolyzed water from the water in the water tank, a filter partially immersed in the water in the water tank, and an air blower for blowing air drawn in through the air intake to the air outlet via the filter, a tank compartment in which the filter is provided, a filter compartment in which the filter is provided, and a partition plate separating the tank compartment and the filter compartment; the water tank is detachably attached to the water tank and attached along the partition plate, and has a groove extending in the vertical direction on the surface facing the partition plate; the tablet injection mechanism is provided above the water tank, and the electrolysis-accelerating tablets dropped from the tablet injection mechanism fall into the tank compartment through a space surrounded by the partition plate and the groove portion of the water tank. The groove portion has an upper groove portion provided at an upper end of the groove portion and a lower groove portion provided below the upper groove portion when the water tank is attached to the tank compartment, and the horizontal cross-sectional area of ​​the upper groove portion is larger than the horizontal cross-sectional area of ​​the lower groove portion. When the water tank is attached to the tank compartment, the surface of the partition plate of the water tub facing the water tank has a protrusion that protrudes into the lower groove portion. The present invention is characterized by the above, and thereby achieves the intended purpose. [Effects of the Invention]

[0009] According to the present invention, a water heater comprises a main body case having an air intake and an air outlet, a water tank provided within the main body case for storing water, a water tank for supplying water to the water tank, a tablet dispenser mechanism for dispensing electrolysis-accelerating tablets into the water tank, an electrolysis unit for producing electrolyzed water from the water in the water tank, a filter partially immersed in the water in the water tank, and an air blower for blowing air drawn in from the air intake to the air outlet via the filter, the water tank having a tank compartment in which the water tank and the electrolysis unit are provided, a filter compartment in which the filter is provided, and a partition plate separating the tank compartment from the filter compartment, the water tank being detachably provided in the water tank and attached along the partition plate, and having a groove extending in the vertical direction on the surface facing the partition plate, the tablet dispenser mechanism being provided above the water tank, and the electrolysis-accelerating tablets dropping from the tablet dispenser mechanism falling into the tank compartment via a space surrounded by the partition plate and the groove of the water tank. The groove portion has an upper groove portion provided at an upper end of the groove portion and a lower groove portion provided below the upper groove portion when the water tank is attached to the tank compartment, and the horizontal cross-sectional area of ​​the upper groove portion is larger than the horizontal cross-sectional area of ​​the lower groove portion. When the water tank is attached to the tank compartment, the surface of the partition plate of the water tub facing the water tank has a protrusion that protrudes into the lower groove portion. It is characterized by the following.

[0010] With the above configuration, the tablet feeding mechanism is located above the tank member and separated from the water in the water storage container, thereby preventing the electrolysis-promoting tablets in the tablet feeding mechanism from deliquescing; the water tank is detachably attached to the water tank and is attached along the partition plate, so vibrations during attachment and detachment make it difficult for the powder of the electrolysis-promoting tablets to adhere to the inner surface of the partition plate or the groove of the water tank, preventing the electrolysis-promoting tablets from clogging the space surrounded by the partition plate and the groove of the water tank. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of an air purifying device according to a first embodiment of the present invention; [Figure 2] FIG. [Figure 3] Cross-sectional view of the air purifier [Figure 4] 1 is a perspective view of the water tank, filter frame, filter, water tank, and electrode of the air purifier; [Figure 5] An exploded view of the filter frame and filter of the air purifier [Figure 6]FIG. [Figure 7] FIG. 10 is a perspective view of a tablet injection mechanism of the air purifying device. [Figure 8] FIG. 10 is a cross-sectional perspective view of a tablet injection mechanism of the air purifying device. [Figure 9] An exploded view of the water tank, filter frame, filter, water tank, and electrodes of the air purifier. [Figure 10] An exploded view of the water tank, filter frame, filter, water tank, and electrodes of the air purifier. [Figure 11] A plan view of the water tank and the water tank of the air purifier [Figure 12] 1 is a cross-sectional view of an air purifying device according to a first embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present embodiment will be described below with reference to the accompanying drawings.

[0013] (Embodiment 1) Fig. 1 is a perspective view of an air purifying device according to a first embodiment of the present invention. Fig. 2 is a perspective view of the air purifying device according to the first embodiment of the present invention with the door open. Fig. 3 is a cross-sectional view of the air purifying device according to the first embodiment of the present invention. Fig. 4 is a perspective view of a filter frame, a filter unit, and a water tank of the air purifying device according to the first embodiment of the present invention.

[0014] 1 to 4, the air purifying device 1 of this embodiment includes a main body case 4 in the shape of a vertically long box having an air intake 2 and an air outlet 3, and includes an air purification filter 5, an air purification unit 6, an air blower 7, and a tablet dispenser mechanism 8 inside the main body case 4. Within the main body case 4, the air purification filter 5 is disposed on the front side of the main body case 4, the air blower 7 is disposed on the rear side of the main body case 4, and the air purification unit 6 is disposed between the air purification filter 5 and the air blower 7.

[0015] The air intakes 2 are located on the left and right side surfaces of the main body case 4, and the air outlet 3 is located on the top surface of the main body case 4. The air outlet 3 has multiple louvers 3a that rotate up and down. In Figures 1, 2, and 3, the air outlet 3 is shown with the louvers 3a closed.

[0016] The air purifying filter 5 has a structure that captures fine particles and removes them from the airflow. The air purifying filter 5 has a vertically long shape and is made of a filter material folded in a bellows shape. The air purifying filter 5 is provided on the downwind side of the air duct of the air intake 2.

[0017] The air purification unit 6 holds water and promotes gas-liquid contact between the air to be humidified and the water, and is provided on the downwind side of the air duct of the air purification filter 5. The air purification unit 6 has a water tank 12, a water tub 13, a filter 14, a filter frame 15, a rotating member 16, and an electrolysis unit 17. The main body case 4 has an openable door 4a on its side, and when the door 4a is opened, the water tank 12 and the water tub 13 appear.

[0018] Water tank 12 is attached to the end of water tub 13, and stores water therein. Water is supplied from water tank 12 to water tub 13 via a valve mechanism, thereby maintaining a substantially constant water level in water tub 13. Water tank 12 may also be configured to supply water from a pipe connected to a water pipe.

[0019] Water tub 13 is shaped like a generally long horizontal box with an open top, stores water supplied from water tank 12, and is detachably mounted at the bottom of main body case 4. Water tub 13 has a plurality of first support plates (not shown) and second support plates 18, each shaped like a generally vertically long plate that extends upward. The top of the first support plate has a first bearing (not shown) that rotatably supports filter frame 15, and the top of second support plate 18 has a second bearing 20 that rotatably supports filter frame 15.

[0020] FIG. 5 is an exploded view of the filter frame and filter unit of the air purifying device according to the first embodiment of the present invention.

[0021] As shown in Figures 3 to 5, filter 14 is disk-shaped, with parts of its periphery periodically immersed in the water in the tank, and it draws up water by capillary action. The water drawn up by capillary action is held by the connecting threads of filter 14, and humidification is achieved by air passing through these threads. Filter 14 is held within filter frame 15.

[0022] The filter frame 15 has a filter outer frame 21 and a filter inner frame 22 .

[0023] The filter outer frame 21 has a circular shallow dish shape and has a plurality of openings 23 on its bottom surface. A first shaft 24 protruding outward is provided in the center of the bottom surface of the filter outer frame 21. The diameter of the filter outer frame 21 is slightly larger than the diameter of the filter inner frame 22.

[0024] The filter inner frame 22 has a circular shallow dish shape, and has a plurality of openings 25 on the bottom surface. The filter inner frame 22 has a second shaft 26 protruding outward at the center of the bottom surface.

[0025] The filter 14 is disposed between the filter outer frame 21 and the filter inner frame 22, and the filter inner frame 22 is configured to fit within the filter outer frame 21. In this state, the second shaft 26 of the filter inner frame 22 and the first shaft 24 of the filter outer frame 21 each protrude outward. The filter frame 15 is rotatably supported by the first shaft 24 of the filter outer frame 21 and the second shaft 26 of the filter inner frame 22, on a first bearing provided on a first support plate of the water tank 13, and a second bearing 20 provided on a second support plate 18. The first shaft 24 of the filter outer frame 21 and the second shaft 26 of the filter inner frame 22 extend in the front-to-rear direction of the main body case 4 (the air blowing direction of the filter frame 15). The filter 14 and the filter frame 15 are configured to rotate up and down by a rotating member 16. The first shaft 24 of the filter outer frame 21 of the filter frame 15 is attached to the first bearing, and the second shaft 26 of the filter inner frame 22 is attached to the second bearing 20 so that part of the periphery of the filter 14 is immersed in the water in the water tank 13.

[0026] Fig. 6 is a perspective view of the air purifying device according to embodiment 1 of the present invention. Fig. 7 is a perspective view of the tablet dispenser mechanism of the air purifying device according to embodiment 1 of the present invention. Fig. 8 is a cross-sectional perspective view of the tablet dispenser mechanism of the air purifying device according to embodiment 1 of the present invention.

[0027] As shown in Figures 6, 7 and 8, the tablet injection mechanism 8 is installed above the water tank 13 and includes a tablet injection case 40, a tablet injection member 41 provided within the tablet injection case 40, and a tablet injection cover 42 detachably provided on the top of the tablet injection case 40. When the tablet injection cover 42 is removed from the tablet injection case 40 and an electrolysis-accelerating tablet 43 is placed inside the tablet injection case 40, the tablet injection member 41 rotates, and the electrolysis-accelerating tablet 43 automatically falls from an opening 44 on the bottom of the tablet injection case 40 through a space surrounded by a partition plate (described later) and a groove in the water tank 12 into the water tank 13. Note that, as an example, sodium chloride can be used as the electrolysis-accelerating tablet 43.

[0028] The electrolysis unit 17 immerses a first electrode (not shown) and a second electrode (not shown) in the water in the water tank 13, applies a voltage to the first electrode and the second electrode, and electrochemically treats the water in the water tank 13 containing electrolysis-accelerating tablets 43 (described later) that are dispensed by the tablet dispenser mechanism 8, thereby generating hypochlorous acid. An example of an electrolysis-accelerating solvent is sodium chloride, and the electrolysis unit 17 electrochemically decomposes an aqueous sodium chloride solution to generate electrolyzed water containing active oxygen species (hypochlorous acid is used as an example in this embodiment).

[0029] Here, reactive oxygen species refers to oxygen molecules and related substances that have higher oxidizing activity than normal oxygen. For example, reactive oxygen species include not only so-called narrowly defined reactive oxygen species such as superoxide anion, singlet oxygen, hydroxyl radical, or hydrogen peroxide, but also so-called broadly defined reactive oxygen species such as ozone and hypochlorous acid (hypohalous acid). In addition, in this embodiment, the generation of electrolyzed water containing reactive oxygen species (here, hypochlorous acid) may be expressed as generating reactive oxygen species (here, hypochlorous acid).

[0030] figure 3 1, the blower 7 is provided in the center of the main body case 4, and includes a motor 27, a fan 28 rotated by the motor 27, and a scroll-shaped casing 29 surrounding them.

[0031] The casing 29 is provided with an outlet 30 and an inlet 31. The outlet 30 is provided on the upper surface side of the main body case 4 of the casing 29. The inlet 31 is provided on the front surface side of the main body case 4 of the casing 29.

[0032] The motor 27 has a rotation shaft 32, and the rotation shaft 32 of the motor 27 extends horizontally from the front side to the rear side of the main body case 4.

[0033] Fan 28 is a sirocco fan, and is fixed to a rotary shaft 32 extending from motor 27. When rotary shaft 32 of motor 27 rotates, fan 28 also rotates, and air drawn in from air intake 2 of main body case 4 is blown to air outlet 3 via first air passage 33 or second air passage 34 inside main body case 4.

[0034] First air passage 33 is an air passage that sequentially communicates with air intake 2, air purification filter 5, filter 14, and blower unit 7, and then air outlet 3. First, when fan 28 of blower unit 7 rotates, air outside main body case 4 is sucked in through air intake 2 and blown into first air passage 33. The air blown into first air passage 33 passes through air purification filter 5, which captures dust and the like, turning it into purified air. Next, the purified air sequentially passes through filter 14, which holds electrolyzed water containing hypochlorous acid, becomes further purified air, and is then blown out of main body case 4 from air outlet 3 via blower unit 7.

[0035] Second air passage 34 is an air passage that sequentially communicates from air intake 2 to air outlet 3 via air purification filter 5 and blower unit 7. First, when fan 28 of blower unit 7 rotates, air outside main body case 4 is sucked in through air intake 2 and passes through air purification filter 5, where dust and other particles are captured, becoming purified air. Next, the purified air bypasses filter frame 15 and filter 14, passes outside filter frame 15, and is blown out of main body case 4 from air outlet 3 via blower unit 7.

[0036] As configured above, as shown in Figures 1, 3 and 8, the air purifying device 1 of this embodiment comprises a main body case 4 having an air intake 2 and an air outlet 3, a water tank 13 for storing water provided within the main body case 4, a water tank 12 for supplying water to the water tank 13, a tablet dispenser mechanism 8 for dispensing electrolysis-promoting tablets 43 into the water tank 13, an electrolysis unit 17 for generating electrolyzed water from the water in the water tank 13, a filter 14 partially immersed in the water in the water tank 13, and an air blower 7 for blowing air drawn in through the air intake 2 through the filter 14 to the air outlet 3.

[0037] figure 9 Fig. 1 is an exploded view of the water tank, filter frame, filter, water tank, and electrodes of the air purifier according to embodiment 1 of the present invention. Fig. 10 is an exploded view of the water tank, filter frame, filter, water tank, and electrodes of the air purifier according to embodiment 1 of the present invention. Fig. 11 is a plan view of the water tank and water tank of the air purifier according to embodiment 1 of the present invention. Fig. 11 is a view of the water tank and water tank from above.

[0038] As shown in Figures 9, 10, and 11, the water tank 13 has a tank compartment 13a in which the water tank 12 and the electrolysis unit 17 are provided, a filter compartment 13b in which the filter 14 is provided, and a partition plate 13c that separates the tank compartment 13a from the filter compartment 13b.

[0039] A feature of this embodiment is the shapes of the partition plate 13c and the water tank 12. Specifically, the water tank 12 is detachably attached to the water tub 13 and is attached along the partition plate 13c, and has a groove 50 extending in the vertical direction and recessed inward in the water tank 12 on the surface facing the partition plate 13c. The tablet injection mechanism 8 is provided above the water tank 12. The electrolysis accelerating tablets 43 that drop from the tablet injection mechanism 8 pass through the space surrounded by the partition plate 13c and the groove 50 of the water tank 12 and fall near the electrolysis unit 17 in the tank compartment 13a.

[0040] As a result, the tablet injection mechanism 8 is located above the water tank 12 and separated from the water in the water tank 13, preventing the electrolysis-promoting tablets 43 in the tablet injection mechanism 8 from deliquescing and preventing the electrolysis-promoting tablets 43 from adhering to the tablet injection mechanism 8 or to each other. Furthermore, when the electrolysis-promoting tablets 43 pass through the space surrounded by the partition plate 13c and the groove 50 of the water tank 12, they may rub against the inner surface of the partition plate 13c or the groove 50 of the water tank 12, generating powder of the electrolysis-promoting tablets 43 that may adhere to the inner surface of the partition plate 13c or the groove 50 of the water tank 12. This powder is usually easy to remove from the inner surface of the partition plate 13c or the groove 50 of the water tank 12, but it may adhere and become difficult to remove due to changes in humidity or when water adheres and dries again. Repeated cycles of this process may result in large clumps. Therefore, the water tank 12 is configured to be detachable from the water tank 13. As a result, when the water tank 12 is attached or detached to replenish it with water, the impact of the attachment or detachment causes the partition plate 13c and the water tank 12 to vibrate, making it easier to remove powder that has adhered to the partition plate 13c and the inner surface of the groove portion 50 of the water tank 12. As a result, powder from the electrolysis-promoting tablets is less likely to adhere to the partition plate 13c or the inner surface of the groove portion 50 of the water tank 12, preventing clogging of the electrolysis-promoting tablets.

[0041] Furthermore, when the water tank 12 is attached to the tank compartment 13a, the groove 50 has an upper groove 50a provided at the upper end of the groove 50 and a lower groove 50b provided below the upper groove 50a. The horizontal cross-sectional area of ​​the upper groove 50a is larger than the horizontal cross-sectional area of ​​the lower groove 50b. The electrolysis promoting tablets 43 dropping from the tablet injection mechanism 8 drop into the space 53 surrounded by the partition plate 13c and the upper groove 50a of the water tank 12, and then drop through the space 53 surrounded by the partition plate 13c and the upper groove 50a of the water tank 12 into the space 51 surrounded by the partition plate 13c and the lower groove 50b of the water tank 12. The horizontal cross-sectional area of ​​the upper groove 50a is larger than the horizontal cross-sectional area of ​​the lower groove 50b. In other words, the space 51 surrounded by the partition plate 13c and the lower groove 50b of the water tank 12 1 The horizontal cross-sectional area of ​​the space 5 surrounded by the partition plate 13c and the upper groove portion 50a of the water tank 12 is 3 From the horizontal cross-sectional area of smallIn this way, the electrolysis promoting tablets 43 dropping from the tablet dropping mechanism 8 first fall into the space surrounded by the partition plate 13c, which has a large horizontal cross-sectional area, and the upper groove portion 50a of the water tank 12, and are therefore likely to enter the groove portion 50. Next, they pass through the space 51 surrounded by the partition plate 13c, which has a small horizontal cross-sectional area, and the lower groove portion 50b of the water tank 12, and are therefore likely to fall near the electrolysis unit 17 in the tank compartment 13a.

[0042] Furthermore, when the water tank 12 is attached to the tank compartment, it has a handle 54 at its top. The upper groove 50a is a part of the handle 54. Specifically, the handle 54 is composed of the upper groove 50a and a recess 55 recessed toward the partition plate 13c at the top of the side surface 12b of the water tub 13 that faces the side surface 12a on the divider plate 13c side when the water tank 12 is attached to the tank compartment 13a. For example, the handle 54 can be grasped by placing the thumb in the recess 55 and the other fingers on the concave surface of the upper groove 50a. In this way, the upper groove 50a is part of the handle 54, and therefore utilizes the recess for the handle 54. As a result, the reduction in the volume of the water tank 12 can be reduced compared to when the water tank 12 is recessed only to guide the partition plate 13c and the water tank 12 into the groove 50.

[0043] In addition, when the water tank 12 is attached to the tank compartment 13a, the partition plate 13 of the water tub 13 c The surface of the partition plate 13c facing the water tank 12 has a protrusion 56 that protrudes into the lower groove 50b. When the water tank 12 is attached or detached to refill the water tank 12 with water, the protrusion 56 moves within the lower groove 50b, and the protrusion 56 makes it easier to remove powder adhering to the concave surface of the lower groove 50b of the partition plate 13c and the water tank 12.

[0044] Furthermore, a portion of lower groove 50b extends diagonally, and protrusion 56 is provided to fit along the lower concave surface of lower groove 50b. Partition plate 13c and water tank 12 may be in contact with each other, or there may be a gap between partition plate 13c and water tank 12. Because a portion of lower groove 50b extends diagonally and protrusion 56 is provided to fit along the lower concave surface of lower groove 50b, even if the gap between partition plate 13c and water tank 12 is large, protrusion 56 can prevent items from falling from space 51 surrounded by partition plate 13c and lower groove 50b of water tank 12 into the gap between partition plate 13c and water tank 12. [Industrial Applicability]

[0045] The present invention is suitable as an air purifying device for home or office use. [Explanation of symbols]

[0046] 1. Air purifier 2 air intakes 3 Air outlet 3a Louver 4 Main unit case 4a Door 5. Air Purifying Filter 6 Air Purification Unit 7. Blower 8. Tablet injection mechanism 12 Water Tank 12a side 12b Side 13 Aquarium 13a Tank compartment 13b Filter compartment 13c Divider 14 filters 15 Filter Frame 16 Rotating member 17 Electrolysis Unit 18 Second support plate 20 Second bearing 21 Filter outer frame 22 Filter inner frame 23 Aperture 24 1st axis 25 Aperture 26 2nd axis 27 Motor 28 fans 29 Casing 30 outlet 31 Intake port 32 Rotation axis 33 1st wind path 34 2nd wind path 40 pill dispenser 41 Tablet injection member 42 Tablet dispenser cover 43 Electrolysis Accelerator Tablets 44 Aperture 50 Groove 50a Upper groove 50b Bottom groove 51 Space 53 Space 54 Handle 55 recess 56 Protrusion 100 electrolysis units 101 Aquarium 102 Water tank 103 Electrolysis Accelerator Tablets 104 Feeding mechanism section 105 cases 106 Movable guide member section 107 Movable parts 108 Cavity

Claims

1. a main body case having an air intake port and an air outlet; a water tank provided in the main body case for storing water; a water tank for supplying water to the water tank; a tablet injection mechanism for inserting electrolysis-promoting tablets into the water tank; an electrolysis unit for generating electrolyzed water using the water in the water tank; a filter partially immersed in the water in the tank; a blower that blows air drawn in through the air intake port to the air outlet through the filter, The water tank is a tank compartment in which the water tank and the electrolysis unit are provided; a filter compartment in which the filter is provided; a partition plate separating the tank compartment and the filter compartment, the water tank is detachably attached to the water tub and is attached along the partition plate, and has a groove extending in the vertical direction on a surface facing the partition plate; The tablet injection mechanism is provided above the water tank, The electrolysis accelerating tablets dropping from the tablet dropping mechanism drop into the tank compartment through a space surrounded by the partition plate and the groove of the water tank, the groove portion has an upper groove portion provided at an upper end of the groove portion and a lower groove portion provided below the upper groove portion when the water tank is attached to the tank compartment, a horizontal cross-sectional area of ​​the upper groove portion is larger than a horizontal cross-sectional area of ​​the lower groove portion; An air purifying device characterized in that, when the water tank is attached to the tank compartment, the surface of the partition plate of the water tub facing the water tank has a protrusion that protrudes into the lower groove portion.

2. 2. The air purifying device according to claim 1, wherein a portion of the lower groove extends obliquely, and the protrusion is provided along a lower concave surface of the lower groove.

3. The water tank has a handle portion at an upper portion when attached to the tank compartment, 2. The air purifying device according to claim 1, wherein the upper groove is a part of the handle.

Images