CN117120106A - Air purifying device - Google Patents

Abstract

The air cleaning device of the present disclosure includes a main body case having an air inlet (2) and an air outlet. The main body case has an electrolytic cell (34), an electrolytic cell, a sterilization zone, a gas-liquid contact zone, a water supply zone, a water replenishment zone, a blower, and a control unit for controlling the electrolytic cell, the active oxygen species replenishment zone (19), the water replenishment zone, and the blower. The control unit operates the active oxygen species supply unit (19) and the water supply unit to adjust the concentration of active oxygen species in the sterilization zone to a predetermined concentration.

Description

Air purifying device

Technical Field

The present disclosure relates to an air purification device that rotates a filter partially immersed in water in a water storage container using salt-containing water in the water storage container, and that includes an air passage that ventilates the filter to sterilize the water containing hypochlorous acid.

Background

As a conventional air purifying apparatus, there is known an air purifying apparatus including a main body case having an air inlet and an air outlet, the main body case having: an electrolytic cell for storing water containing sodium chloride; an electrolysis unit for electrolyzing water in the electrolysis tank to generate water containing active oxygen species; a sterilization zone in which water containing active oxygen species in the electrolytic cell flows in through the communication path; a gas-liquid contact part for contacting water containing active oxygen species in the sterilization zone with air; and a blower that sends air sucked from the air inlet to the air outlet via the gas-liquid contact portion (for example, patent document 1). The electrolytic cell and the sterilization zone are arranged side by side in the water storage container. The water storage container has a communication path between the electrolytic cell and the sterilization zone for communicating the electrolytic cell with the sterilization zone.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2014-190553

Disclosure of Invention

In such a conventional air cleaning apparatus, the electrolytic cell and the sterilization zone are arranged side by side in the water storage container. The water storage container has a communication path between the electrolytic cell and the sterilization zone for communicating the electrolytic cell and the sterilization zone. Thus, the water containing the active oxygen species in the electrolytic cell flows into the sterilization zone through the communication path. However, since the water is not forcibly supplied from the electrolytic cell to the sterilization zone, it takes time until the concentration of the water containing the active oxygen species in the sterilization zone becomes a predetermined concentration, and there is a case where the concentration of the water containing the active oxygen species in the sterilization zone varies. Here, if air sucked into the main body case through the air inlet is blown from the air outlet through the gas-liquid contact portion that brings water containing active oxygen species in the sterilization zone into contact with the air by the blower, there is a problem that the amount of active oxygen species sprayed from the air outlet also varies.

The air cleaning device of the present disclosure includes a main body case having an air suction port and an air discharge port. The main body case has: an electrolytic cell for storing water containing a predetermined amount of sodium chloride; an electrolysis unit for electrolyzing water in the electrolysis tank to generate water containing active oxygen species; a sterilization zone for supplying water containing active oxygen species in the electrolytic cell by the active oxygen species supply unit; a gas-liquid contact part for contacting water containing active oxygen species in the sterilization zone with air; a water supply section for storing water; a water replenishing section for supplying a part of water from the water supply section to the sterilization section; a fan that blows air sucked from the air inlet to the air outlet via the air-liquid contact portion; and a control unit for controlling the electrolysis unit, the active oxygen species supply unit, the water replenishing unit and the blower, wherein the control unit operates the active oxygen species supply unit and the water replenishing unit to adjust the concentration of the active oxygen species in the sterilization zone to a predetermined concentration.

The present disclosure can provide an air cleaning device that suppresses variation in the concentration of water containing active oxygen species in a sterilization zone and suppresses variation in the amount of active oxygen species sprayed from a blowout port.

Drawings

Fig. 1 is a perspective view of an air cleaning device according to embodiment 1 of the present disclosure.

Fig. 2 is a perspective view of the air cleaning device in a state in which a door is opened.

Fig. 3 is a cross-sectional view showing the structure of the air cleaning device.

Fig. 4 is a perspective view of the water storage unit of the air cleaning device.

Fig. 5 is a perspective view showing an internal structure of the air purifying apparatus.

Fig. 6 is a perspective view of the water storage unit of the air cleaning device.

Fig. 7 is a plan view of the water reservoir of the air cleaning device.

Fig. 8 is a plan view of the water reservoir of the air cleaning device.

Fig. 9 is a perspective view of a water supply portion of the air cleaning device.

Fig. 10 is a perspective view of an electrolytic cell of the air cleaning apparatus.

Fig. 11 is a perspective view of an electrolytic cell of the air cleaning apparatus.

Fig. 12 is a sectional view of an electrolytic cell of the air cleaning apparatus.

Fig. 13 is a perspective view of the tablet insertion mechanism of the air cleaning device.

Fig. 14 is a perspective view showing a tablet insertion box of the tablet insertion mechanism of the air cleaning device.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings.

(embodiment 1)

Fig. 1 and 2 are perspective views of an air purification device 100 according to embodiment 1 of the present disclosure. Fig. 1 is a perspective view of an air purification device 100 from the front side. Fig. 2 is a perspective view of the air cleaning device 100 with the door opened and the water storage portion 16 removed from the front side. Fig. 3 is a cross-sectional view of the air purifying apparatus 100 according to embodiment 1 as seen from the side.

In the following, the vertical direction in a state where the air cleaning device 100 is installed (hereinafter also referred to as "installed state") as shown in fig. 1 may be referred to as the up-down direction, and the horizontal direction may be referred to as the left-right direction. In the following, in the installed state of the air cleaning device 100, the surface of the air cleaning device 100 on the side where the door 3 is provided is referred to as the "front surface", the surface of the air cleaning device 100 facing the front surface is referred to as the "rear surface", the right side surface as viewed from the front surface side of the air cleaning device 100 is referred to as the "right side surface", and the left side surface is referred to as the "left side surface".

Hereinafter, the detailed structure of the air purification apparatus 100 will be described. As shown in fig. 1, the air cleaning device 100 of the present embodiment has a main body case 1 having a substantially box shape. A substantially quadrangular suction port 2 is provided on both side surfaces of the main body casing 1. An openable door 3 is provided on the front surface of the main body casing 1. By opening the door 3, a part of the air purifying unit 7 (see fig. 3) in the main body case 1, which will be described later, can be taken out. An openable blowout port 4 is provided on the top surface of the main body casing 1.

As shown in fig. 2 and 3, a partition plate 5, a blower 6, an air purifying unit 7, an air passage 8, and a control unit 9 are provided in the main body casing 1.

The partition plate 5 is a plate provided in the center of the main body case 1, and separates the front side and the rear side of the main body case 1 together with a partition wall 24 (see fig. 4) described later. Here, the back side of the main body case 1 partitioned by the partition plate 5 is the air passage 8.

The blower 6 sucks air from the air inlet 2 into the main body casing 1, and blows out the sucked air from the air outlet 4. The fan 6 is provided at the center in the main body case 1, and includes a motor unit 10, a fan unit 11 rotated by the motor unit 10, and a case unit 12 surrounding the motor unit 10 and the fan unit 11.

The operation of the fan 6 in the present embodiment is determined by the operation unit 1A provided in the main body casing 1. As shown in fig. 1, 2 and 3, the operation portion 1A is covered with an openable cover 1B provided on the top surface of the main body case 1. The user of the air cleaning apparatus 100 of the present disclosure can stepwise adjust the air volume of the blower 6 by operating an air volume switching button (not shown) provided in the operation unit 1A. Information of the user operation is transmitted as an input signal to the control section 9.

The fan unit 11 is fixed to a motor shaft 13 extending in the horizontal direction from the motor unit 10. The fan unit 11 is, for example, a sirocco fan.

The motor portion 10 is fixed to the housing portion 12. A discharge port 14 is provided on the upper surface side of the main body case 1 of the case portion 12. A suction port 15 is provided on the rear surface side of the main body case 1 of the case 12.

Fig. 4 is a perspective view of the air purification device 100 according to embodiment 1 in a state in which the water storage container 21 is disposed in the main body casing 1. Fig. 5 is a perspective view showing an internal structure with a part of the constituent elements of the air purification apparatus 100 of embodiment 1 removed. Fig. 6 is a perspective view of the water storage portion 16 of the air cleaning device 100 according to embodiment 1.

As shown in fig. 2 to 6, the air cleaning unit 7 is a device in which water from the water supply unit 22 is stored in the electrolytic bath 34, an electrolysis promoting tablet is put into the water in the electrolytic bath 34 by the tablet putting mechanism 35, and the water containing hypochlorous acid is generated by electrolysis, and the generated water containing hypochlorous acid is sprayed from the air outlet 4 by bringing the water into contact with air sucked into the main body casing 1 from the air inlet 2 by the blower 6.

The air cleaning unit 7 includes a water storage portion 16, an electrolysis portion 17, a water supply portion 18, an active oxygen species supply portion 19, and a water supply portion 20.

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

Fig. 7 is a plan view of the water storage portion 16 of the air cleaning device 100 according to embodiment 1. Fig. 8 is a plan view showing the internal structure with a part of the components of the water storage unit 16 of the air cleaning device 100 of embodiment 1 removed.

As shown in fig. 4, 6, 7 and 8, the water storage container 21 is disposed in the lower portion of the main body casing 1, has a box shape with an open top surface, and is configured to be capable of storing water. The water storage container 21 has a partition wall 24, a water supply section 25 and a sterilization section 26.

As shown in fig. 4, the partition wall 24 is a plate that separates the front side of the main body casing 1 (outside the air passage 8) from the back side of the main body casing 1 (outside the air passage 8) in the water storage container 21. The partition wall 24 extends upward from the bottom surface of the water storage container 21. The upper end of the partition wall 24 is disposed above the upper end of the water storage container 21.

As shown in fig. 6, 7, and 8, a surface of a part of the upper end of the partition wall 24 is in surface contact with the wall surface of the partition plate 5. Thus, the front side (outside the air duct 8) of the main body case 1 and the back side (outside the air duct 8) of the main body case 1 are separated from each other so that no air is introduced or discharged.

The water supply section 25 has a substantially bowl-like shape and is a partition for storing water supplied from the water supply section 22. The water supply section 25 is located on the front side of the main body casing 1 with respect to the partition wall 24 in the water storage container 21 disposed at the lower portion of the main body casing 1. In addition, the water supply section 25 has a configuration capable of holding the water supply section 22. At the bottom of the water supply section 25, a cylindrical protrusion 27 is provided at a position where the water supply section 22 is held.

The sterilization zone 26 has a substantially bowl-like shape and is a partition for storing hypochlorous acid-containing water having a predetermined concentration. The sterilization zone 26 is provided so as to extend across the front and rear sides of the partition wall 24, and communicates the front and rear sides of the partition wall 24 through an opening (not shown) provided below the water surface of the partition wall 24. The sterilization zone 26 has a 1 st water amount detection unit 28 and a 2 nd water amount detection unit 29 that detect the water level of the sterilization zone 26.

The 1 st water amount detection unit 28 detects that the water level in the sterilization zone 26 becomes lower than the water shortage level lower than the target water level. The target water level is a water level of the maximum water amount set for each component in the air purifying operation of the air purifying apparatus 100 of the present disclosure. The water shortage level refers to a minimum water amount set for each constituent member in the air purifying operation of the air purifying apparatus 100 of the present disclosure.

The 1 st water amount detection section 28 includes a 1 st float portion 28a having buoyancy located on the back side of the partition wall 24 in the sterilization zone 26, and a 1 st detection sensor (not shown) that detects the position of the 1 st float portion 28a.

The 1 st float portion 28a is disposed within the sterilization zone 26. The 1 st detection sensor is buried in the vicinity of the 1 st float portion 28a in the wall portion of the main body case 1.

When the water level in the sterilization zone 26 decreases below the water shortage level, the 1 st float portion 28a is no longer detectable due to the consequent float of the 1 st float portion 28a. At this time, the 1 st detection sensor transmits a signal indicating that the water level in the sterilization zone 26 is lower than the water shortage level to the control unit 9.

The 2 nd water amount detecting unit 29 detects that the water level in the sterilization zone 26 reaches the target water level. The 2 nd water amount detecting portion 29 includes a 2 nd float portion 29a having buoyancy located on the front side of the partition wall 24 in the sterilization zone 26, and a 2 nd detection sensor (not shown) that detects the position of the 2 nd float portion 29a.

The 2 nd float portion 29a is disposed in the sterilization zone 26. The 2 nd detection sensor is buried in the vicinity of the 2 nd float portion 29a in the wall portion of the main body case 1.

When the water level in the sterilization zone 26 rises to reach the target water level, the 2 nd float portion 29a can be detected due to the accompanying float of the 2 nd float portion 29a. At this time, the 2 nd detection sensor transmits a signal indicating that the water level in the sterilization zone 26 reaches the target water level to the control unit 9.

Fig. 9 is a perspective view of the water supply unit 22 of the air purification apparatus 100 according to embodiment 1.

As shown in fig. 2 and 9, the water supply unit 22 is provided in the water supply section 25, and is configured to be detachable from the water supply section 25, and automatically supplies water so that the water level in the water supply section 25 becomes constant. The water supply portion 22 includes a hollow tank (container) 30 for storing water and a handle 30a provided at an upper portion of the tank 30. The handle 30a is integral with the water tank 30. Therefore, the user can attach and detach the water supply part 22 to and from the water supply section 25 with holding the handle 30a.

The water tank 30 is provided with a circular water tank opening (not shown) at the center of the bottom surface in a state of being attached to the water supply section 25. The tank opening of the tank 30 has a cylindrical shape extending in the vertical direction along the central axis direction, and is configured to be sealable by a cover 31 that is provided on the outside Zhou Cazhuang of the tank opening.

The cover 31 has a cylindrical shape with a central axis extending in the up-down direction. A lid opening 31a having a cylindrical shape and opening in the up-down direction is provided at the center of the bottom surface of the lid 31 in a state of being attached to the water storage container 21. The lid opening 31a is provided with a valve plug 31b for opening and closing the lid opening.

The valve pin 31b includes a cylindrical shaft (not shown), an opening/closing valve (not shown) provided at one end of the shaft so as to close the cap opening 31a, a spiral spring (not shown) provided so that the shaft can pass through the center thereof, and a spring stopper (not shown) provided at the other end of the shaft.

When the water tank 30 is provided at the water supply section 25, the spring stopper portion is in contact with the protrusion 27 of the water supply section 25. Thus, the spring stopper moves upward while compressing the spring. The opening/closing valve of the valve plug 31b moves upward accordingly, and the opening/closing valve is separated from the lid opening 31a of the lid 31. Thereby, water in the water tank 30 flows into the water supply section 25 from the cover opening 31a of the cover 31.

Here, when water is accumulated in the water supply section 25 up to the lower end of the cover opening 31a, air does not enter the water tank 30 from the lower end of the cover opening 31a. Therefore, water in the water tank 30 does not flow into the water supply section 25. That is, when the water of the water supply section 25 is reduced, the water level increases to the lower end of the cover opening 31a, and the water level is maintained constant at the lower end of the cover opening 31a. Therefore, a constant water level can be maintained at all times in the water supply section 25.

As shown in fig. 6 and 7, the gas-liquid contact portion 23 is a member located on the back surface side of the partition wall 24 in the sterilization zone 26, and contacts the water stored in the sterilization zone 26 with the indoor air sucked into the main body casing 1 by the blower 6. The gas-liquid contact portion 23 includes a filter 32, a filter frame 33, and a driving portion (not shown).

The filter 32 has a water retention property, is formed in a cylindrical shape, and has holes in a circumferential portion through which air can flow. The filter 32 is mounted on the filter frame 33 in such a manner that one end of the filter 32 is immersed in water in the sterilization zone 26.

The filter frame 33 is rotatably supported by a bearing (not shown) provided in the water storage container 21. The filter 32 and the filter frame 33 are configured to be rotated by a driving unit.

Fig. 10 is a perspective view of the electrolytic bath 34 of the air cleaning apparatus 100 according to embodiment 1. Fig. 11 is a perspective view showing an internal structure with a part of the constituent members of the electrolytic cell 34 removed from the air cleaning apparatus 100 according to embodiment 1. Fig. 12 is a side sectional view of the electrolytic bath 34 of the air cleaning apparatus 100 according to embodiment 1.

As shown in fig. 10, 11 and 12, the electrolysis unit 17 electrolyzes water in the electrolytic bath 34 to generate hypochlorous acid-containing water.

The electrolysis unit 17 includes an electrolysis cell 34, a tablet charging mechanism 35 (see fig. 2), and an electrolysis unit 36.

The electrolytic bath 34 is provided above the water storage container 21 and has a substantially box-like shape with an open top surface. The electrolytic bath 34 stores water, which is supplied from the water storage 16 by the water supply 18, in the electrolytic bath 34. The electrolytic bath 34 has a 3 rd water amount detecting portion 37 and a 4 th water amount detecting portion 38 that detect the water level of the electrolytic bath 34.

The 3 rd water amount detecting unit 37 detects that the water level in the electrolytic bath 34 is not less than the water shortage level or not more than the water shortage level. The 3 rd water amount detecting portion 37 includes a 3 rd float portion 37a having buoyancy, and a 3 rd detection sensor (not shown) that detects the position of the 3 rd float portion 37a.

The 3 rd float portion 37a is disposed in the electrolytic bath 34. The 3 rd detection sensor is buried in the vicinity of the 3 rd float portion 37a in the wall portion of the main body case 1.

The 3 rd detection sensor detects the 3 rd float portion 37a due to the accompanying float of the 3 rd float portion 37a when the water level in the electrolytic bath 34 rises from a water level lower than the water shortage level to reach the water shortage level. At this time, the 3 rd detection sensor transmits a signal indicating that the water level in the electrolytic bath 34 is equal to or higher than the water shortage level to the control unit 9.

In addition, when the water level in the electrolytic bath 34 decreases below the water shortage level, the 3 rd detection sensor can no longer detect the 3 rd float portion 37a due to the consequent floating of the 3 rd float portion 37a. At this time, the 3 rd detection sensor transmits a signal indicating that the water level in the electrolytic bath 34 is lower than the water shortage level to the control unit 9.

The 4 th water amount detecting unit 38 detects that the water level in the electrolytic bath 34 reaches the target water level. The 4 th water amount detecting portion 38 includes a 4 th float portion 38a having buoyancy, and a 4 th detection sensor (not shown) that detects the position of the 4 th float portion 38a.

The 4 th float portion 38a is disposed in the electrolytic bath 34. The 4 th detection sensor is buried in the vicinity of the 4 th float portion 38a in the wall portion of the main body case 1.

When the 4 th detection sensor reaches the target water level by rising the water level in the electrolytic bath 34, the 4 th float portion 38a can be detected by the resulting float of the 4 th float portion 38a. At this time, the 4 th detection sensor transmits a signal indicating that the water level in the electrolytic bath 34 reaches the target water level to the control unit 9.

Fig. 13 is a perspective view of tablet insertion mechanism 35 of air purification device 100 according to embodiment 1. Fig. 14 is a perspective view showing the tablet insertion mechanism 35 of the air cleaning device 100 according to embodiment 1 in the tablet insertion box 39.

As shown in fig. 13 and 14, the tablet charging mechanism 35 is provided above the electrolytic bath 34. The tablet input mechanism 35 includes: a tablet input box 39, a tablet input member 40 provided in the tablet input box 39, a tablet input cover 41 detachably provided on an upper portion of the tablet input box 39, and an input motor for rotating the tablet input member 40. When the tablet charging cover 41 is removed from the tablet charging box 39 and the electrolysis promoting tablet 42 is placed in the tablet charging box 39, the tablet charging member 40 is rotated by the charging motor. The tablet charging member 40 is rotated by the charging motor at predetermined intervals by the control unit 9. Thus, the electrolysis promoting tablets 42 automatically drop from the opening 39a of the bottom surface of the tablet insertion box 39 to the electrolytic bath 34. Among them, as an example, sodium chloride may be used for the electrolysis promoting tablet 42.

The electrolysis unit 36 impregnates the 1 st electrode (not shown) and the 2 nd electrode (not shown) into the water in the electrolytic bath 34, applies a voltage to the 1 st electrode and the 2 nd electrode, and electrochemically treats the water in the electrolytic bath 34 in which the electrolysis promoting tablet 42 put in by the tablet input mechanism 35 is put in, thereby generating hypochlorous acid. One example of the electrolysis promoting tablet 42 is sodium chloride. The electrolysis unit 36 electrochemically electrolyzes the sodium chloride aqueous solution to generate electrolyzed water containing an active oxygen species (hypochlorous acid, as an example, in the present embodiment).

Here, the active oxygen species refers to an oxygen molecule having higher oxidation activity than normal oxygen and its related substances. For example, the active oxygen species include not only so-called narrow-sense active oxygen such as superoxide anions, singlet oxygen, hydroxyl radicals, or hydrogen peroxide, but also so-called broad-sense active oxygen such as ozone, hypochlorous acid (hypohalous acid), and the like. In the present embodiment, the electrolyzed water that generates the active oxygen species (hypochlorous acid in this case) may be expressed as the active oxygen species (hypochlorous acid in this case).

As shown in fig. 4, 5 and 6, the water supply unit 18 supplies water from the water storage unit 16 to the electrolysis unit 17. As shown in fig. 6, for example, the water supply section 18 includes a water supply pump 43 provided so as to be immersed in water in the water supply section 25, and a water supply channel 44 connected to the water supply pump 43.

The water supply pump 43 is a pump for sucking water supplied from the water supply unit 22 to the water supply section 25, moves the water to the water supply channel 44, and sends the water to the electrolytic bath 34.

The water supply path 44 is a cylindrical pipe provided with openings at both ends. One end of the opening of the water supply channel 44 is connected to the water supply pump 43, and the other end of the opening of the water supply channel 44 is located above the top surface of the electrolytic bath 34.

As shown in fig. 4, 5, 11 and 12, the active oxygen species supply portion 19 delivers water from the electrolytic bath 34 to the water reservoir portion 16. The active oxygen species supply unit 19 includes an active oxygen species communication unit 19a and an active oxygen species pump unit 19b.

The active oxygen species communication portion 19a is a flow path communicating with the electrolytic bath 34 and the sterilization zone 26. The active oxygen species pump unit 19b is a mechanism for supplying water in the electrolytic bath 34 to the active oxygen species communication portion 19 a.

As shown in fig. 6 and 7, the water replenishing portion 20 delivers water from the water supply section 25 to the sterilization section 26. The water replenishing portion 20 includes a water replenishing pump 51 provided so as to be immersed in water in the water supply area 25, and a water replenishing water channel 52 connected to the water replenishing pump 51.

The water replenishment pump 51 is a pump for pumping up water supplied from the water supply unit 22 to the water supply section 25, moves to the water replenishment waterway 52, and sends the water to the sterilization section 26.

The water replenishing waterway 52 is a cylindrical tube provided with openings at both ends. One end of the opening of the water replenishment waterway 52 is connected to the water replenishment pump 51, and the other end of the opening of the water replenishment waterway 52 is located directly above the water surface on the front side of the partition wall 24 of the sterilization zone 26.

That is, the main body casing 1 has the water replenishing portion 20 for transporting water from the water supply section 25 to the sterilization section 26.

This allows hypochlorous acid-containing water fed from the electrolytic bath 34 and water in the water supply section 25 to be mixed in an arbitrary ratio. Therefore, the concentration of the hypochlorous acid in the sterilization zone 26 can be adjusted to a predetermined concentration.

As shown in fig. 3, the air duct 8 communicates the air inlet 2 with the air outlet 4. In the air duct 8, a gas-liquid contact portion 23, a fan 6, and a blowout port 4 are provided in this order from the intake port 2. When the fan unit 11 is rotated by the motor unit 10, air outside the air duct 8 through the air inlet 2 is blown out from the air outlet 4 through the gas-liquid contact unit 23 and the fan 6 in order.

The control unit 9 is provided in the main body case 1. The control unit 9 receives signals from the 1 st water amount detection unit 28, the 2 nd water amount detection unit 29, the 3 rd water amount detection unit 37, the 4 th water amount detection unit 38, and the operation unit 1A. The control unit 9 controls the operations of the electrolysis unit 36, the water supply unit 18, the active oxygen species supply unit 19, the water supply unit 20, and the tablet charging mechanism 35. Thereby, the control unit 9 adjusts the concentration and the amount of hypochlorous acid-containing water in the sterilization zone 26. The control unit 9 can estimate hypochlorous acid consumption amount of hypochlorous acid-containing water and water amount reduction amount of hypochlorous acid-containing water in the sterilization zone 26 based on the signal indicating the air volume of the blower 6 received from the operation unit 1A.

An example of adjustment of the concentration and the amount of hypochlorous acid-containing water in the sterilization zone 26 in the apparatus having the above-described structure will be described.

When the 3 rd water amount detection unit 37 detects that the water level in the electrolytic bath 34 is lower than the water shortage level, the control unit 9 operates the water supply pump 43 to start the water supply from the water supply section 25 to the electrolytic bath 34 via the water supply channel 44.

Next, when the 3 rd water level detecting unit 37 detects that the water level has risen to the water shortage level, the control unit 9 operates the tablet charging mechanism 35 to charge the electrolysis promoting tablet 42 into the electrolytic bath 34.

Then, when the water level in the electrolytic bath 34 further rises and the 4 th water amount detection unit 38 detects that the water level has risen to the target water level, the control unit 9 stops the operation of the water supply pump 43.

Next, the control unit 9 starts the operation of the electrolytic cell 36, and stops the electrolytic cell 36 after a predetermined time has elapsed. This produces hypochlorous acid-containing water having a constant concentration, which is held in the electrolytic bath 34.

When it is estimated from the signal indicating the air volume of the blower 6 sent from the operation unit 1A that the hypochlorous acid in the sterilization zone 26 is consumed by a predetermined amount, the control unit 9 operates the active oxygen species pump 45, and starts to supply the hypochlorous acid-containing water from the electrolytic bath 34 to the supply tank 47 via the active oxygen species pre-stage water supply channel 46.

After a predetermined time has elapsed, the control unit 9 stops the operation of the active oxygen species pump 45. The hypochlorous acid-containing water supplied to the supply tank 47 gradually moves to the reactive oxygen species post-stage water supply channel 48 through the drop opening 50, and is supplied to the sterilization zone 26 via the reactive oxygen species post-stage water supply channel 48.

When it is estimated from the signal indicating the air volume of the fan 6 received from the operation unit 1A that the amount of water in the sterilization zone 26 has decreased by a predetermined amount, the control unit 9 operates the water replenishment pump 51 to start water feeding from the water supply zone 25 to the sterilization zone 26.

When the 2 nd water amount detecting unit 29 detects that the water level has risen to the target water level, the control unit 9 stops the operation of the water replenishment pump 51. At this time, the hypochlorous acid-containing water supplied from the active oxygen species supply unit 19 is mixed with the water supplied from the water supply unit 20, and the concentration of hypochlorous acid in the sterilization zone 26 is adjusted to a predetermined concentration.

By these controls, hypochlorous acid-containing water having a water content and a concentration within a predetermined range can be held in the sterilization zone 26. This can provide an air cleaning device that exhibits stable sterilization performance.

As configured above, the air cleaning device 100 has the air inlet 2 and the air outlet 4. The main body case 1 has: an electrolytic cell 34 for storing water containing a predetermined amount of sodium chloride; an electrolysis unit 36 for electrolyzing the water in the electrolytic bath 34 to generate water containing active oxygen species; a sterilization zone 26 for supplying water containing active oxygen species in the electrolytic bath 34 by the active oxygen species supply unit 19; a gas-liquid contact unit 23 for bringing water containing active oxygen species in the sterilization zone 26 into contact with air; a water supply section 25 for storing water; a water replenishing portion 20 that supplies a part of water from the water supply portion 25 to the sterilization portion 26; a fan 6 that blows air sucked from the air inlet 2 to the air outlet via the gas-liquid contact portion 23; and a control unit 9 for controlling the electrolysis unit 36, the active oxygen species supply unit 19, the water supply unit 20, and the blower 6.

As shown in fig. 3, 5, 6 and 10, the present embodiment is characterized in that the control unit 9 operates the active oxygen species supply unit 19 and the water supply unit 20, supplies water containing active oxygen species having a concentration higher than a predetermined concentration generated in the electrolytic bath 34 and water in the water supply section 25 into the sterilization section 26, and adjusts the concentration of the active oxygen species in the sterilization section 26 to the predetermined concentration.

In this way, the water containing the active oxygen species having a concentration higher than the predetermined concentration generated in the electrolytic bath 34 is forcibly supplied to the sterilization zone 26 by the active oxygen species supply unit 19, and the water in the water supply zone is forcibly supplied to the sterilization zone 26 by the water supply unit 20. Therefore, the concentration of the water containing the active oxygen species in the sterilization zone 26 can be adjusted in a short time. This can suppress the variation in the concentration of the water containing the active oxygen species in the sterilization zone 26, and suppress the variation in the amount of the active oxygen species sprayed from the air outlet.

Further, by the water replenishing portion 20, a part of the water in the water supply region 25 is supplied to the sterilization region 26, and the concentration of the water containing the active oxygen species in the sterilization region 26 can be diluted to a predetermined concentration. Therefore, the size of the electrolytic cell can be reduced.

For example, in the case where the concentration of water containing active oxygen species in the sterilization zone 26 is set to a predetermined concentration, it is conceivable that water containing active oxygen species of a predetermined concentration is generated in the electrolytic cell 34 without providing the water replenishing portion 20, and supplied into the sterilization zone 26 by the active oxygen species replenishing portion 19. In this case, the amount of water containing active oxygen species of a predetermined concentration that can be supplied into the sterilization zone 26 becomes the amount of water generated in the electrolytic bath 34. On the other hand, if the water replenishing portion 20 is provided, the concentration of the water containing the active oxygen species in the sterilization zone 26 can be diluted to a predetermined concentration, and water containing the active oxygen species having a concentration higher than the predetermined concentration can be generated in the electrolytic cell 34. Thus, the amount of water containing active oxygen species of a predetermined concentration that can be supplied into the sterilization zone 26 is the sum of the amount of water generated in the electrolytic bath 34 and the amount of water supplied from the water replenishing portion 20. That is, by providing the water replenishing portion 20, water containing a predetermined concentration of active oxygen species can be generated in a large amount in the sterilization zone 26, as compared with the case where the water replenishing portion 20 is not provided. As a result, the size of the electrolytic bath 34 can be reduced.

After the electrolysis unit 36 hydrolyzes the water in the electrolytic cell 34, the control unit 9 stores water containing active oxygen species in the electrolytic cell 34 and supplies the water to the active oxygen species supply unit 19 in multiple times.

Specifically, when it is estimated that hypochlorous acid in the sterilization zone 26 is consumed by a predetermined amount from the signal indicating the air volume of the blower 6 sent from the operation unit 1A, the control unit 9 supplies water containing a predetermined amount of active oxygen species from the electrolytic bath 34 to the sterilization zone 26 by the active oxygen species supply unit 19.

As shown in fig. 2, 5 and 10, when it is estimated that the amount of water in the sterilization zone 26 is reduced by a predetermined amount from the signal indicating the air volume of the fan 6 received from the operation unit 1A, the control unit 9 supplies water from the water supply zone 25 to the sterilization zone 26 by the water replenishment unit 20. The control unit 9 performs these operations a plurality of times. In this way, the number of times of supplying the water containing the active oxygen species in the electrolytic bath 34 is increased by the active oxygen species supply unit 19, and the amount of change in the concentration of the active oxygen species in the sterilization zone 26 can be reduced.

When the electrolysis unit 36 electrolyzes the water in the electrolytic cell 34, the control unit 9 operates the electrolysis unit 36 during the 1 st predetermined time period in which the electrolysis unit 36 can completely electrolyze the sodium chloride in the electrolytic cell 34. Thus, sodium chloride contained in the water in the electrolytic bath 34 is electrolyzed, and after the water containing no active oxygen species in the electrolytic bath 34 is not contained, sodium chloride can be suppressed from remaining in the electrolytic bath 34.

The air cleaning device 100 further includes: a water supply unit 18 for supplying a part of the water in the water supply section 25 to the electrolytic bath 34; and a tablet charging mechanism 35 for charging the electrolytic bath 34 with an electrolytic accelerator containing a predetermined amount of sodium chloride. After the water containing no active oxygen species is not contained in the electrolytic cell 34, the control unit 9 stores water containing a predetermined amount of sodium chloride in the electrolytic cell 34 by the tablet charging mechanism 35 and the water supply unit 18, and electrolyzes the water containing sodium chloride in the electrolytic cell 34 by the electrolysis unit 36.

Specifically, the electrolytic cell 34 has: a 3 rd water amount detecting unit 37 for detecting that the water level in the electrolytic bath 34 is lower than the water shortage level; and a 4 th water amount detecting unit 38 for detecting that the water level in the electrolytic bath 34 reaches the target water level. The state in which the water containing no active oxygen species in the electrolytic bath 34 includes a state in which the water level in the electrolytic bath 34 is detected by the 3 rd water amount detecting unit 37 or the like to be lower than a predetermined water level such as a predetermined water shortage level or the like in the electrolytic bath 34, and a state in which the water containing active oxygen species remains in a place where the active oxygen species supply unit 19 cannot supply the water to the sterilization zone 26.

First, upon receiving a signal from the 3 rd water amount detecting unit 37 that the water level in the electrolytic cell 34 is lower than the water shortage level, the control unit 9 inputs an electrolysis accelerator containing a predetermined amount of sodium chloride into the electrolytic cell 34 by the tablet input mechanism 35, supplies a part of the water in the water supply section 25 to the electrolytic cell 34 by the water supply unit 18, and stores the water containing the predetermined amount of sodium chloride in the electrolytic cell 34.

Next, upon receiving a signal indicating that the water level in the electrolytic bath 34 has reached the target water level from the 3 rd water amount detection unit 37, the control unit 9 stops the operation of the water supply unit 18, and electrolyzes sodium chloride in the electrolytic bath 34 by the electrolysis unit 36 to generate water containing active oxygen species.

In this way, the electrolysis unit 36 is operated during the 1 st predetermined time period in which the electrolysis unit 36 can electrolyze all of the sodium chloride in the electrolysis tank 34, and after the water containing the active oxygen species is not contained in the electrolysis tank 34, the water containing the active oxygen species is regenerated in the electrolysis tank 34. Therefore, sodium chloride is difficult to remain in the electrolytic bath 34. As a result, since sodium chloride remains in the electrolytic bath 34, an increase in the concentration of sodium chloride in the electrolytic bath 34 can be suppressed. Therefore, the concentration of the active oxygen species in the electrolytic bath 34 can be easily maintained constantly, and the concentration of the active oxygen species in the sterilization zone 26 can be maintained more constantly.

Industrial applicability

The air cleaning device of the present disclosure is useful as an air cleaning device or the like for use in home, business, or the like.

Description of the reference numerals

1. Main body shell

1A operation part

1B cover

2. Suction port

3. Door

4. Blowing-out port

5. Partition plate

6. Blower fan

7. Air purifying unit

8. Air path

9. Control unit

10. Motor unit

11. Fan part

12. Housing part

13. Motor shaft

14. Discharge outlet

15. Suction inlet

16. Water storage part

17. Electrolytic part

18. Water supply part

19. Active oxygen species supply unit

19a active oxygen species communication portion

19b active oxygen species pump unit

20. Water replenishing part

21. Water storage container

22. Water supply part

23. Gas-liquid contact part

24. Partition wall

25. Water supply section

26. Sterilization zone

27. Protrusions

28. 1 st water volume detecting part

28a 1 st float portion

29. 2 nd water volume detecting part

29a 2 nd float portion

30. Water tank

30a handle

31. Cover for a container

31a cover opening

31b valve plug

32. Filter device

33. Filter frame

34. Electrolytic cell

35. Tablet input mechanism

36. Electrolysis unit

37. 3 rd water volume detecting part

37a 3 rd float portion

38. 4 th water volume detecting part

38a 4 th float portion

39. Tablet input box

39a opening

40. Tablet input member

41. Tablet feeding cover

42. Electrolysis-promoting tablet

43. Water supply pump

44. Water supply waterway

45. Active oxygen species pump

46. Active oxygen species front stage delivery waterway

47. Supply tank

48. Active oxygen species rear-stage delivery waterway

50. Drop opening

51. Water supplementing pump

52. And a water supplementing waterway.

Claims (3)

1. An air purification device, characterized in that:

comprising a main body shell with an air suction port and an air blowing port,

the main body case includes:

an electrolytic cell in which water containing a predetermined amount of sodium chloride is stored;

an electrolysis unit that electrolyzes water in the electrolysis tank to generate water containing active oxygen species;

a sterilization zone to which water containing active oxygen species in the electrolytic cell is supplied by an active oxygen species supply unit;

a gas-liquid contact unit for bringing water containing active oxygen species in the sterilization zone into contact with air; and

a water supply section storing water;

a water replenishing portion that supplies a part of water of the water supply section to the sterilization section;

a blower that sends air sucked from the air inlet to the air outlet via the gas-liquid contact portion,

a control unit for controlling the electrolysis unit, the active oxygen species supply unit, the water supply unit, and the blower,

the control unit operates the active oxygen species supply unit and the water supply unit to adjust the concentration of the active oxygen species in the sterilization zone to a predetermined concentration.

2. An air cleaning apparatus according to claim 1, wherein:

the control unit is configured to supply the water containing the active oxygen species in the electrolytic cell to the sterilization zone by the active oxygen species supply portion a plurality of times after the electrolytic cell electrolyzes the water in the electrolytic cell.

3. An air cleaning apparatus according to claim 1 or 2, wherein:

the main body case further has: a tablet charging mechanism for charging an electrolysis accelerator containing a predetermined amount of sodium chloride into the electrolytic cell; and a water supply part for supplying a part of water of the water supply section to the electrolytic cell,

the control part is provided with a control part,

operating the electrolysis unit during the 1 st prescribed time period when the electrolysis unit can completely electrolyze the sodium chloride in the electrolysis tank,

after the water containing active oxygen species is exhausted from the electrolytic cell, water containing a predetermined amount of sodium chloride is stored in the electrolytic cell by the tablet charging mechanism and the water supply unit,

and electrolyzing the water containing sodium chloride in the electrolytic tank by using the electrolytic unit.