JP2019170598A - Air purifier - Google Patents

Abstract

To provide an air purifier that can quickly switch gas concentration corresponding to a combination of airflow volume and concentration.SOLUTION: An air purifier comprises: an electrolytic cell part 15 which generates hypochlorous acid by electrolysis; a storage tank part 16 which holds hypochlorous acid water generated by the electrolytic cell part 15; a gas-liquid contact filter 7 of a cylindrical body which absorbs hypochlorous acid water by rotating in the storage tank part 16; a blowing part which blows air to the gas-liquid contact filter 7 to vaporize hypochlorous acid; a control part which controls operations of the gas-liquid contact filter 7 and the blowing part, in which the gas-liquid contact filter 7 is equipped with a plurality of serially arranged filter bodies 12 rotatably about a single axis separately, and the control part, in switching a diffusion operation of diffusing air containing hypochlorous acid into a cabin and a spot operation of blowing air containing hypochlorous acid against a human body, switches the number of the filter bodies 12 to be rotated.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an air purification device that removes bacteria, viruses, odors and the like in the air.

  An air purification device that removes bacteria, viruses, and odorous substances in the air by bringing hypochlorous acid water obtained by electrolyzing water into the filter member and allowing it to aerate and bringing it into contact with the air. Has already been proposed.

JP 2017-060592 A

  In such a conventional air purification device, the required gas concentration is different between the operation for the space and the spot operation for the person, and the time-effective sterilization / deodorization is performed in the operation for the space. In order to perform a high-concentration gas blowout within a range below the safety standard, a spot operation targeting a person or the like requires a low-concentration gas blowout in consideration of safety and odor. The concentration of the hypochlorous acid gas to be blown out is determined mainly by the amount of blown air and the concentration of the hypochlorous acid water in the tray. In order to reduce the concentration of hypochlorous acid gas blown from the main body during operation, a method of lowering the concentration of hypochlorous acid in the tray by draining part of the water in the tray and supplying water, There are ways to increase the airflow, but each has its own problems. The former requires water supply and drainage to adjust the concentration, and it is necessary to equalize the concentration, which requires a predetermined time, and the latter cannot cope with operation when it is desired to operate with a low air volume. In this case, it was difficult to switch quickly according to the combination of the air volume and the density.

  Then, it aims at providing the air purification apparatus which can be switched quickly according to the combination of an air volume and a density | concentration.

  And in order to achieve this objective, the air purification apparatus which concerns on this invention is the storage tank which hold | maintains the electrolysis tank part which produces | generates hypochlorous acid by electrolysis, and the hypochlorous acid water produced | generated by the electrolysis tank part And a cylindrical gas-liquid contact filter containing hypochlorous acid water by rotating in the storage tank unit, and a blowing unit for blowing air to the gas-liquid contact filter to volatilize hypochlorous acid In the air purifying apparatus comprising the gas-liquid contact filter and a control unit for controlling the operation of the blower unit, the gas-liquid contact filter rotates a plurality of filter bodies arranged in series separately around one axis. The filter body may be rotated when switching between a diffusion operation in which air containing hypochlorous acid is diffused indoors and a spot operation in which air containing hypochlorous acid is applied to a human body. Configuration to switch the number of Are those were, thereby is to achieve the intended purpose.

  As described above, the present invention includes a plurality of filter bodies arranged in series so as to be separately rotatable around one axis, and the control unit performs a diffusion operation for diffusing air containing hypochlorous acid in the room, and By switching the number of filter bodies to be rotated when switching to spot operation in which air containing hypochlorous acid is applied to the human body, the surface wind speed in each filter is constant, and the area in which the filter rotates is reduced. Since it is selectable, the amount of air blown out and the concentration of hypochlorous acid water in the tray can be changed by changing the amount of hypochlorous acid water supplied to the filter depending on whether or not a predetermined stage rotates. In addition, the effect of quickly switching the concentration of hypochlorous acid released into the storage space can be obtained.

Schematic of the air purification device according to Embodiment 1 of the present invention. Schematic of the cross section of the air purification device Plan view schematic diagram of the tray of the air purifier Schematic of the air purification device tray Schematic diagram of filter movement of the air purifier ((a) a diagram showing a state during diffusion operation, (b) a diagram showing a state during spot operation)

  An air purification apparatus according to claim 1 of the present invention includes an electrolytic tank section that generates hypochlorous acid by electrolysis, a storage tank section that holds hypochlorous acid water generated in the electrolytic tank section, and the storage tank. A cylindrical gas-liquid contact filter containing hypochlorous acid water by rotating in the unit, an air blowing unit for blowing air to the gas-liquid contact filter to volatilize hypochlorous acid, and the gas-liquid contact filter And a control unit that controls the operation of the blower unit, the gas-liquid contact filter includes a plurality of filter bodies arranged in series so as to be separately rotatable around one axis, and the control The section switches the number of the filter bodies to be rotated when switching between a diffusion operation in which air containing hypochlorous acid is diffused indoors and a spot operation in which air containing hypochlorous acid is applied to the human body. is there.

  Thereby, since the amount of hypochlorous acid water supplied to the filter can be controlled more finely by switching the number of the filter bodies to be rotated, the gaseous hypochlorous acid discharged into the indoor space more finely The concentration can be adjusted, and it can be adjusted quickly, such as a high concentration when it is desired to increase the sterilization and deodorizing effect, and a low concentration when the chlorine odor is concerned.

  Further, in the air purifying apparatus according to claim 2, the one shaft is a first rotation shaft of the first filter body, and the rotation shaft of the other filter body is an air core disposed around the one shaft. A rotating gear directly connected to each of the first rotating shaft and the second rotating shaft is arranged side by side in the axial direction on one side of the one shaft. The rotary drive device is provided so as to be capable of cross-engagement, and on the other side of the one shaft, the number of the rotary gears engaged with the rotary drive device can be switched by moving the one shaft in the axial direction. A moving device is provided.

  Thereby, since the number of rotating gears meshed with the rotation drive device can be switched by the moving device, the number of rotating filter bodies can be changed, and supply of hypochlorous acid water to the gas-liquid contact filter By changing the amount, the concentration of hypochlorous acid released into the indoor space can be switched.

  An air purifying apparatus according to claim 3 is a working piece in which the moving device is provided on the other side of the one shaft, and a moving device that selectively moves the working piece in the direction of the one shaft. It consists of

  Thereby, the number of rotating gears meshed with the shaft rotation driving device can be changed by changing one shaft of the action piece in the axial direction by the moving device, so that the number of rotating filter bodies can be changed. By changing the amount of hypochlorous acid water supplied to the gas-liquid contact filter, the concentration of hypochlorous acid released into the indoor space can be switched.

  Further, in the air purifying device according to claim 4, the engagement with the rotary drive device is released by providing a notch that meshes with the gear on a part of the storage tank portion on one side of the one shaft. The gear and the notch can be meshed with each other.

  As a result, the rotation of the filter can be reliably stopped by meshing the gear that does not mesh with the shaft rotation driving device and the notch, and the amount of hypochlorous acid water supplied to the gas-liquid contact filter is changed. Thus, the concentration of hypochlorous acid released into the indoor space can be switched.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 shows an appearance of the air purification device 1 according to the present embodiment.

  As shown in FIG. 1, a substantially box-shaped main body case 2 is provided, a substantially rectangular suction port 3 for sucking indoor air on both sides thereof, and a substantially rectangular blower for blowing purified air on the top surface. An outlet 4 is provided.

  As shown in FIG. 2, in the main body case 2, there are an air air passage 5, a blower unit 6, a gas-liquid contact filter 7, a water supply tank 8 as a water supply unit, a water supply detection unit 9, and a tray 10. The control unit 11 is provided.

  As shown in FIG. 3, the gas-liquid contact filter 7 includes a plurality of filter bodies 12 arranged in series so as to be separately rotatable around one shaft 13. One shaft 13 is supported by a bearing 31 of the tray 10 shown in FIG.

  The air air passage 5 is an air passage that passes through the gas-liquid contact filter 7 and the air blowing unit 6 inside the main body case 2, and communicates the air inlet 3 with the air outlet 4.

  The air blowing unit 6 is provided on the upper part of the main body case 2 and connected to the air outlet 4. As an example, the blower 6 desirably includes a so-called sirocco fan that includes a motor, an impeller rotated by the motor, and a case surrounding the motor and the impeller.

  The gas-liquid contact filter 7 is a rotatable hollow cylindrical body having a plurality of openings on the surface thereof, and the surface of the gas-liquid contact filter 7 passes through the air air passage 5 on the upstream side of the air flow from the air blowing unit 6. It is provided to block out.

  The water supply tank 8 and the tray 10 are provided in the lower part of the main body case 2, and these can be detached from the main body case 2.

  Although the water supply tank 8 has a structure that can be sealed with a cap, when the water supply tank 8 is installed on the tray 10, the water tap provided on the cap is released and water is supplied to the tray 10. When the water surface rises to the faucet, the water supply tank 8 is sealed by the water surface, the supply of water is stopped, and a constant amount of water can always be supplied.

  In the tray 10, an electrolytic cell unit 15 having electrodes 14 and a water supply detection means 9 are provided, and the water supply detection means 9 uses a float sensor using magnetism. The water supply detection means 9 detects that the inside of the tray 10 has become drought.

  The electrolytic cell unit 15 generates hypochlorous acid water as a solution by electrolyzing a sodium chloride aqueous solution prepared by adding tablet-like sodium chloride into the water supplied from the water supply tank 8 at the electrode 14. is there. Inside the reservoir 16, the lower part of the gas-liquid contact filter 7 is immersed in the solution.

  The electrolytic cell unit 15 and the storage cell unit 16 are separated by a partition plate 17. In the partition plate 17, a gap is provided in a lower portion on one end side of the partition plate 17 in order to limit the movement of the solution between the storage tank unit 16 and the electrolytic cell unit 15.

  In order to supply electrolyzed hypochlorous acid water to the gas-liquid contact filter 7, it is preferable to provide one shaft 13 and the partition plate 17 in parallel.

  The control unit 11 performs operation control to switch between a diffusion operation in which air containing hypochlorous acid is diffused in the indoor space and a spot operation in which air containing hypochlorous acid is applied to the human body. The number of the filter bodies 12 to be rotated is changed, and the concentration of gaseous hypochlorous acid discharged to the indoor space is adjusted.

  Further, the rotation direction of the gas-liquid contact filter 7 rotates from the windward side to the leeward side on the water surface.

  In the above configuration, the water supply tank 8 is attached before the operation of the air purification device 1, and the sodium chloride solution is supplied into the tray 10. The contents of the water supply tank 8 may be tap water, and a sodium chloride tablet may be inserted into the tray 10 by the user.

  When the air purification device 1 is operated, first, the electrode 14 is operated, sodium chloride present in the electrolytic cell unit 15 is consumed, and hypochlorous acid water is generated. The hypochlorous acid water is supplied to the gas-liquid contact filter 7 provided in the storage tank portion 16 through the gap between the partition plates 17.

  When the air blower 6 operates, the air in the indoor space is sucked into the air purification device 1 from the suction port 3, flows through the air air passage 5, contacts the gas-liquid contact filter 7, and is purified from the air outlet 4. It is discharged into the indoor space outside the apparatus 1. This air is sterilized and deodorized when it comes into contact with the gas-liquid contact filter 7. In addition, contacting air with the gas-liquid contact filter 7 at a predetermined speed enhances the volatilization characteristics of hypochlorous acid, and when discharged from the outlet 4, it becomes air sufficiently containing gaseous hypochlorous acid, Demonstrates sterilization and deodorization. That is, the air purification device 1 has a sterilization and deodorizing effect.

  The control unit 11 rotates all the filter bodies 12 during the diffusion operation, and stops the rotation of some of the filter bodies 12 when switching to the spot operation. Since the filter body 12 can receive more hypochlorous acid water supply by rotating, the supply amount of hypochlorous acid water in the stopped filter body 12 is lower than that of the rotating filter body 12. . Therefore, if the number of rotating filter bodies 12 is reduced, the concentration of hypochlorous acid discharged from the outlet 4 can be reduced. That is, compared with adjusting the concentration of hypochlorous acid water, changing the number of rotating filter bodies 12 can quickly adjust the concentration of gaseous hypochlorous acid released into the indoor space. it can.

(Embodiment 2)
In the present embodiment, an example of a configuration for changing the number of rotating filter bodies 12 will be described.

  As shown in FIG. 3, the gas-liquid contact filter 7 described in the first embodiment has a configuration in which a plurality of filter bodies 12 are arranged in series and can be rotated around a single shaft 13. One shaft 13 is the first rotating shaft 21 of the first filter body 12, and the rotating shaft of the other filter body 12 is an air-core-shaped second rotating shaft disposed around the one shaft 13.

  More specifically, the gas-liquid contact filter 7 is arranged in the order of the first rotating gear 26, the second rotating gear 27, the second filter body 22, the first filter body 20, and the action piece 30 from one side of one shaft 13. They are arranged side by side. The rotating shaft of the first filter body 20 is the first rotating shaft 21, and the rotating shaft of the second filter body 22 is the air-core-shaped second rotating shaft 23 arranged around one shaft 13. The two shafts 13 are arranged coaxially.

  A rotation gear 24 and a rotation drive device 25 are provided on one side of one shaft 13. The rotating gear 24 includes a first rotating gear 26 and a second rotating gear 27 that are directly connected to the first rotating shaft 21 and the second rotating shaft 23, respectively, and is arranged side by side in the axial direction of one shaft 13. The rotation drive device 25 is provided so as to be able to mesh with all of the first rotation gear 26 and the second rotation gear 27.

  Further, the moving device 28 is provided on the other side of the single shaft 13.

  The moving device 28 allows one shaft 13 to move in the axial direction so that the number of rotating gears 24 meshed with the rotation driving device 25 can be switched.

  A specific example of the moving device 28 will be described.

  The moving device 28 includes a spiral rotating body 29 (worm) arranged in parallel with one shaft 13.

  The action piece 30 is a disk connected to the first rotating shaft 21 and is a disk that fits between the spirals of the spiral rotating body 29.

  The first rotating shaft 21 and the second rotating shaft 23 move in the axial direction along the spiral depending on the rotational position of the spiral rotating body 29, and the first rotating shaft 21 and the second rotating shaft depend on the rotating direction of the moving device 28. 23 moving directions can be selectively moved.

  Here, the connection state with respect to the first rotating shaft 21 and the second rotating shaft 23 is arranged. That is, the first rotating gear 26, the first filter body 20, and the action piece 30 are connected to the first rotating shaft 21. The second rotary shaft 23 is connected to the second rotary gear 27 and the second filter body 22.

  The number of rotating shafts provided corresponds to the number of filter bodies 12, and is not limited to the present embodiment, but may be three or more together with the number of filter bodies 12.

FIG. 4 shows a simple schematic view of the tray. Bearings 31 on which the first rotary shaft 21 and the second rotary shaft 23 are placed are provided at opposite edges of the storage tank portion 16 of the tray 10.
Since the first rotary shaft 21 is enclosed by the second rotary shaft 23 on one side of one shaft 13, the bearing 31 is different in the inner diameter of one bearing 32 and the other bearing 33. . That is, one bearing 32 has a larger inner diameter than the other bearing 33. One bearing 32 directly receives the second rotating shaft 23 and the other bearing 33 directly receives the first rotating shaft 21.

  The first rotation shaft 21 and the second rotation shaft 23 of the filter body 12 can rotate on the bearing 31 by the rotation drive device 25 and the rotation gear 24 meshing with each other.

  In the above configuration, during the diffusion operation, as shown in FIG. 5A, the rotary drive device 25 is engaged with all of the first rotary gear 26 and the second rotary gear 27, so that the filter body 12 is all rotating. Therefore, since the filter body 12 can sufficiently receive the supply of hypochlorous acid water, a high concentration of gaseous hypochlorous acid can be released into the indoor space.

  Next, when switching to spot operation, the moving device 28 rotates as shown in FIG. 5B, so that the first rotating shaft 21 and the second rotating shaft 23 move to the moving device 28 so that the action piece 30 follows the spiral. Move in the axial direction of the side. As a result, the second rotary gear 27 does not mesh with the rotation drive device 25, so the rotation of the second rotary shaft 23 stops and the second filter body 22 decreases the supply of hypochlorous acid water. The hypochlorous acid concentration discharged from the can be reduced.

  That is, it is possible to change the concentration of gaseous hypochlorous acid to be blown by moving the filter body 12 in the axial direction of one shaft 13 and switching the number of rotating gears 24 meshed with the rotation drive device 25.

(Embodiment 3)
In the first and second embodiments, the filter body 12 that is not in contact with the gear is in contact with the second rotary shaft 23 and the first rotary shaft 21, and thus may rotate in conjunction.

  Therefore, in the present embodiment, a mode in which the number of rotating filter bodies 12 can be switched more reliably will be described.

  That is, as shown in FIG. 4, one bearing 32 is configured to have a notch 34 that meshes with the rotating gear 24.

  That is, the diameter of the crest of the rotating gear 24 and the diameter of the trough of the notch 34 are matched, and the diameter of the trough of the rotating gear 24 is matched with the inner diameter of one bearing 32 (the crest diameter of the notch 34). It is the structure which can mesh | engage the notch 34 which meshes | engages.

  With the above configuration, when switching to spot operation, the moving device 28 rotates as shown in FIG. 5B, so that the first rotating shaft 21 and the second rotating shaft 23 are moved so that the action piece 30 follows the spiral. It moves in the axial direction on the 28th side.

  At this time, the moved second rotating gear 27 can be fixed by meshing with the notch 34, and the rotation can be stopped more reliably. Since the second filter body 22 is supplied with hypochlorous acid water, the concentration of hypochlorous acid discharged from the outlet 4 can be reduced.

  It is expected to be used as an air purification device for sterilization and deodorization for home use, office use, and public spaces.

DESCRIPTION OF SYMBOLS 1 Air purification apparatus 2 Main body case 3 Suction inlet 4 Outlet 5 Air air path 6 Air blower part 7 Gas-liquid contact filter 8 Water supply tank 9 Water supply detection means 10 Tray 11 Control part 12 Filter body 13 One axis | shaft 14 Electrode 15 Electrolyzer part DESCRIPTION OF SYMBOLS 16 Reservoir part 17 Partition plate 20 1st filter body 21 1st rotating shaft 22 2nd filter body 23 2nd rotating shaft 24 Rotating gear 25 Rotating drive device 26 1st rotating gear 27 2nd rotating gear 28 Moving device 29 Spiral form Rotating body 30 Working piece 31 Bearing 32 One bearing 33 The other bearing 34

Claims (4)

An electrolyzer section that generates hypochlorous acid by electrolysis, a storage tank section that holds hypochlorous acid water generated in the electrolyzer section, and contains hypochlorous acid water by rotating in the storage tank section A cylindrical gas-liquid contact filter, a blower unit that blows air through the gas-liquid contact filter to volatilize hypochlorous acid, and a control unit that controls operation of the gas-liquid contact filter and the blower unit. In the air purification device
The gas-liquid contact filter includes a plurality of filter bodies arranged in series so as to be separately rotatable around one axis,
The controller is
An air purification device that switches the number of filter bodies to be rotated when switching between a diffusion operation in which air containing hypochlorous acid is diffused indoors and a spot operation in which air containing hypochlorous acid is applied to a human body. The one axis is a first rotation axis of the first filter body, and the rotation axis of the other filter body is an air-core-shaped second rotation axis arranged around the one axis,
On one side of the one shaft,
Rotating gears that are directly connected to each of the first rotating shaft and the second rotating shaft are arranged side by side in the axial direction, and provided with a rotation driving device that can be engaged with all the rotating gears,
On the other side of the one shaft,
The air purifier according to claim 1, further comprising a moving device configured to move the one shaft in an axial direction so that the number of the rotating gears meshed with the rotation driving device can be switched. The moving device is a helical rotating body disposed so as to be in contact with an action piece provided on the other side of the one shaft, and the moving device selectively moves the moving direction of the filter shaft according to the rotating direction. The air purifier according to claim 2, comprising: The gear which is disengaged from the rotary drive device can be meshed with the notch by providing a notch that meshes with the gear on the bearing of the storage tank portion on one side of the one shaft. The air purifier according to any one of 1 to 3.

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